I would like to basically share my experiences in trying to spread SyLab within engineering curricula, within my own limited experience. This has brought up some questions which I would like to throw open to you. And what I speak of is mainly applicable to majority of the engineering colleges in India. It means it won't be applicable to institutions like IITs and IITs who are autonomous. One of the questions basically I would like to ask is can we make free, mature and versatile software tools such as SyLab, an integral part of the engineering curriculum. We have seen the presentations by the India team. We know what its capabilities are, but of course each person is looking for a different thing when he looks at SyLab. My view is entirely on teaching and my question is can we make it a part of the curriculum. We have gone through the basic presentations today, but at the cost of repetition, let me say these things again, is free of cost, high quality numerical algorithms and a built-in programming language, integrated graphics and graph plotting, a host of toolboxes to meet a host of needs, SyCos and the recent SyLab LabView integration, ability to integrate SyC and Fortran code into SyLab and most important of all, the access to the source code, which I think is very necessary for teachers and researchers. Again this is common knowledge where can SyLab be used and I look from a very selfish point of view, pedagogical tool, benefits of SyLab as a pedagogical tool may vary. The engineering curriculum, you may not be able to apply SyLab to every subject that you teach. But there are a large number of subjects where SyLab can make a huge impact, huge. And there may be others where it can only be a supplementing kind of thing. And of course there are many subjects where it may never be useful at all. But from a teaching point of view, its interactive mode will be very useful to the novice and the programmable mode will be able to satisfy the experienced user. And the ability of integrating Sy and Fortran code makes it the ideal tool for the researcher. So you have everything that you need as far as teaching and research is concerned. I just thought, let me make a small list of subjects where SyLab can make a huge impact again from my own limited experience civil engineering. I teach structural engineering. Matrix structural analysis is a standard subject in the undergraduate curriculum, numerical methods of course and the finite element method. And if you look at the postgraduate structural engineering curriculum, structural dynamics, optimization. And there are many streams outside my own view where I am sure it will make a huge impact you already see in the list of the streams. Let me give a few numbers, static sticks. India has about 1346 EICT recognized colleges. But 4.4 lakh students study in these colleges. This is the data taken from the AICT website. I understand it is as of 2005, so I think the numbers would have gone up by now. And these colleges contribute the bulk of the technical workforce of the country. But unfortunately, most of them work under the affiliating university model, wherein a central university decides the curriculum, conducts the examinations. And because of this, the teachers have a limited control over the content of the curriculum because it is prescribed by somebody else. You do not have freedom to introduce new things into it because it may not come into the exam system. Another examiner examining the student may not himself know what you have introduced. So there are many issues which are peculiar to the central affiliating system. I would also like to list why possibly Sylab or even MATLAB are not widely used in engineering colleges. One main obvious reason of course is it is not a part of the curriculum, it is not specified. And when it is not specified, possibly a teacher may not think of supplementing his teaching with this particular tool. And possibly one reason which inhibits use of MATLAB is the exorbitant cost, even when it is highly discounted for academic institutions. And as a result of this, either Sylab or MATLAB is mainly restricted to undergraduate student projects, postgraduate dissertations and possibly validation programs conducted within colleges. But if you look at the opportunities that are emerging and possibly that is one new thing that has to be grabbed, the engineering education scenario is changing rapidly. Most colleges and management are recognizing the need for bringing autonomy into the teaching. And therefore many of the universities are already planning, in fact many of them are already underway of granting academic autonomy to colleges. And it is intended that within five years most of these colleges would become autonomous working on their own. And here I think is the opportunity for bringing in tools like Sylab into teaching. Just to give an example, the Viseceraya Technological University, the central technical university in Karnataka, has about 130 engineering colleges. Recently it passed a statute wherein it will grant academic autonomy to its constituent colleges. The first phase of evaluating the colleges to find out whether they are fit for autonomy or not is already through. And possibly a few colleges will go into the autonomy mode starting from the coming academic year in 2007-08. So here is the opportunity. Question is how well prepared are we for this? So that means the faculty of these colleges will become autonomous, now will start designing their own curriculum. And here is an opportunity where people can bring in Sylab into their curriculum. But question is will they develop their own study material if it is to be a part of the curriculum? How will they do it? Will the students need an initial training before they can become effective in using Sylab? These are some of the questions that the teacher will have to answer. If you look at the Sylab website today and look at the contributed download section, the amount of material is huge. There are well over 15 categories for the documentation contributed by others. After the Sylab website was recently revamped, the link on the main page to the contributed downloads has vanished. So it becomes difficult for the people to look for the contributed downloads. And another problem that people who download these materials will face is that there is a consistency in the presentation of the documents. That is quite natural because the contributions come from all over the world. Maybe people speaking French, writing, trying to write in English. So there are all sorts of issues. But the amount of documentation is certainly appreciable. So going to the next question, then what do we need to do, where do we get started? Now if it is necessary for us to bring this into the curriculum, we have to convince the universities and the college management to adopt Sylab and not just Sylab but also the free and open source software technologies into their curriculum. What do we need to do for this? Do we need to have a national level pressure group who will take the lead? If you approach this university or the college, how do you convince this person? What is your unique selling proposition? How do you convince all the skeptics who feel that anything free really doesn't work and we should be looking at are there any precedents? I am aware that Anna University has a new initiative where they have brought in open source technologies into the curriculum but unfortunately I am not very well aware of their details. So I have a few propositions. It is already the engineering curriculum includes one subject in the first year where they are taught a C programming language and numerical methods. This I think is the ideal place where you can replace the C programming language with Sylab. But if you want to really convince the colleges regarding adopting Sylab as a part of the curriculum, then you need to have very good study materials already ready so that it eases the adoption into the curriculum. Let me go into the details of each one of the points. The first thing I think is to look at a list of the subjects where Sylab can make a huge impact, huge. Once such a list of subjects is identified arguably the best way to do it is to write a book but possibly we need not have to start there. We can adopt an existing textbook which is already familiar to the students as well as the teachers and possibly supplement that book with Sylab functions, documentation and so on. Second is to identify the subjects where possibly it does not make a direct impact but where Sylab can make a substantial helping hand.  Possibly this is the area where you could write documents which the students or the teachers can study on their own which may not be a part of the direct part of the curriculum. But when it comes to the self-study, all experiments in distance education or self-study have not always been successful. So we need to do something more about that. So one way we can overcome the problem where you need to motivate the students or the faculty to learn on their own is to make the study material available in an effective way. There are a huge number of learning management systems, all of them in fact everything that I mentioned here except MATLAB are all free and open source software. Moodle, A-Tutor, Clarionline in fact the problem is to decide which one to choose. Based on pedagogical principles, all the LMSs are based on sound pedagogical principles. They are not some free tools somebody is throwing away. Where you can have self-paced learning, you can have continuous evaluation, you can have a complete activity report, the teacher can see exactly what student has seen what and there is a chance where you can have a collective learning, VIKI's and forums are building into such a software and you can even finish off with an online printed certificate. Another way in which you can distribute the materials is through institutional repositories and document management systems. The advantage they offer is that all the material that you put on these is searchable. That means the software basically looks at the content, indexes the content, not just the titles or the keywords that the author gives, the entire contents are indexed so that searching and identifying the documents that you are interested in is much more easy. Now the internet has brought in brand new ways of distributing materials. One example of course is lulu.com is an online printing and distribution service. You can distribute a material either in electronic form or print form. You can decide whether you want to give it a free, whether you want to charge for it, all your copyrights are protected. Now everything that I said is based on our own experience at our college. I just like to list this. We started off in 2004 writing a small tutorial. The purpose was to get the people going in the shortest amount of time. So this particular tutorial just contains mine tutorials over 11 pages, just a simple download and on lulu.com since November 2006 it has 3100 hits and 50 downloads. You will notice that most people visiting lulu are not interested in technical documents but still is a very good way of distribution. And this document is also available on the Saira website, the reason why I am here actually. And there was a small tutorial on matrix structural analysis of plane frame buildings. It used a available textbook as its base so that I need not write anything on the notations or the derivations, nothing to be done there. This is a Moodle in action where every teacher can construct his own course. This is the lulu web front and this is the wiki. So I would like to close what I have been saying. If Saira is to become more visible, more useful and a part of engineering curriculum, then we need to market it as well or better than the math works team. We need to build a community of Saira users that will help each other. That is the way the open source free and open source software has been snow-balling. We need to standardize on the materials, study materials that you distribute. It will have a better acceptability if there is a consistency in the materials that you put for others to download. If there is a heterogeneity in the material that you put out, it becomes difficult. We need to standardize on the online courses. If there are people who can contribute the online courses, possibly IIT Bombay or possibly Falaab itself will be able to put this on a learning management system on the internet so that those who are interested will learn with assistance. See, when you put information on the material for free download, how many of them will pursue it once they download is the question which we will never be able to answer. For example, if there are 350 downloads of my document, how many of them really read it? How many of them really made solid use of it? I will never know. But if you put this information on an LMS, it is possible to mentor, it is possible to follow up on everything that goes on. It is not that we need to control what the user does, but we need to ensure that every download really makes an impact. We need to train the faculty of the engineering colleges if it is to be adopted as a part of the curriculum. And wherever there are success stories, we need to share them and we need to spread the word. In fact, that is what exactly I am trying to do here. I would also like to mention some of the Indian initiatives in open source and free software that I know of that have made an impact. The Indian Tech User Group headed by C.V. Radhakrishnan, they have a latex primer available, they even conducted a latex and free mathematical software workshop jointly organized by Prasgarachyata Pradishanapune and Department of Mathematics, University of Pune. Manjusha and Katriya are both here, I am glad to see them. Sarawar.org is a source like project management system where free and open source software and documents can be distributed. And I know of a small company in Bangalore who has an open source entire operating system which is distributed under the GNU GPL. Thank you.


हॐर Γιαologia है? आटिक है मुँ का साध तो भी एक य क NCT Pike है बसके को नहीं है ऽाई औरम मुँों आब आप या�我要 आप साध म dagger sank पसी आप गी अद, आब thanal बसके बसके शा�ंच, यी days य उन न गगेच अगत Brookगा साध गरु उन्सर्त कि यहूसित. मुझ पी रोत & ुळ imbalance aur said to be orthogonal मुझ पी रोत & ुळ ऎक औँव कोलम्त जब अर्ड़ तो गिल में � stiff मुझ ब मदे पहे तेलुग मैं पह वेग्तार के लग ने रफ दें लिए अप लीगेर गाठ्टर था तो मैं लेग गाए है . अग्स प्राइम वाए एकवल्स तो जीरो, because 2 vectors हम दिलेट किया किया एक्स आन वाए अप अदर पी लिए तो वान, it means पी रोज अन वान कोलम से, are said to be orthogonal. For example, we have the x, which is equals to 5, 4. वेक्तर ना मारिपस एक्स, 5, 4 कर, it means कितनी एक, p-rose one column, 2-rose one column. आदर पी वाए वेक्तर ना वाए याग्स तो जीरो, it means this is the orthogonal vector. अदर पी वाए एक्स प्राइम वाए, now x prime y, x prime 5, 4 and y, 8-10. अदर पी एक्स प्राइम वान, x prime 5, 4 and y, 8-10. अदर पी एक्स पिर, p-rose one column, 2-rose one column, p-rose one column. अदर पी वाए एक्स पी वाए, now X prime 5, 4. अग्स and वाए of order पी into वान are said to be अर्ठो नोल्मल. अब अर्ठो नोल्मल को तोड़ा हम अंट्रस्ट्ट करतें कि अमारे पस क्या है. बेसेकली वी हाग्स, अग्स आम नी क्या लिया है. वान बाए 2, वान बाए 2 श्के रूत into 0, तर्वाल्यो 0, बाह नी काब आब बाए आवए ठोद प्कि जारट है, बनी, मुझा सग économी जारटल बाव जारटल औस, और तो फ कर個人 चस्विया उमस शिका कि लिए, बाशा चक्या नीक बना हुए फती यु तो सगवान या गाय संग underground येखे बेशिकली आप में दियास्धान कनवर्ट करये। आप विखऊल से कि डूद है ये वेक्टर्स बना रह हूं। तो में MotoList में मेरे पास वेक्टर آगया है ये ये वान बाट टूद के रूट एक ती फ़ूँनिवेः, धेगा काी वाकटर, नहीं ज़ों आप तो तुश्के रूँँँँँँँँँँँँँँँँँँँँ Greenson वर ..... तर वक्तःर एत जीजीज जीजीजईद छीजीजई.. वरो जे stuff कहाँ और तोगणल एगे projekt ये। तहार रहमु मेंढा ऊस्ढेउिओं में ुढिमि Aunqueी � crocodile अग्तिर आप क्या भे । ॢवाून बाभााटा Ein जीजईग goods � A multiplicate by 1 by 2 square root plus Sekond 1 by 2 square root multiply by 1 by 2 square root Plus 0 multiplied by 0 Doctors Widen multiplication is that it is multiplied by it is itself multiplied by one by two square root i.e between 0's the other sweater as well as etc fry We do 1 by 2 square root What happened to it if to me फ économंडयensions। दिरीों। necesario क्हए। ख़ीक। ख़ी emotional। दिरी sanitation। अत्शादल। कि भेकियर थी का बाल्गात। के वक्तरट़ खो यह वक्तरटार से मुल्तिप्लिए की है यह लेए वालीूँस से मुल्तिप्लिए करीो तु रिजूल्त मेरे पस वात खेख बलारे है अरे सिम्ली ली सेकिन पोब मैहाए आग़ी मुल्� toward मल्तिप्लिए कर रों बरार एक जेख कर लों को लिए को result क्या रहा है. Means, second value मैंने लिया वान बाई तूसके रूत, multiply by वान बाई तूसके रूत प्लास माइनेस वान बाई तूसके रूत, end 2 माइनेस वान बाई तूसके रूत प्लास, 0 multiply by 0. So, this is value which is equals to 1 by 2, minus multiply by minus, plus 1 by 2, plus 0. So, you will get result of one cake. So, one cake is coming. So, we can say that this is the orthonormal. Now, if I am writing here, you can check cross multiplication equals to 0. Now, here, within multiplication equals to 1. Cross multiplication means that I will multiply the first vector with second vector. So, result should be equal to 0. Within multiply, result is 1 cake. So, now, I have multiplied the result. Now, we will cross multiplication. Now, 1 by 2 square root, multiply by 1 by 2 square root, plus 1 by 2 square root, multiply by minus 1 by 2 square root, plus 0 multiplied by 0. So, 1 by 2 square root, multiply by 1 by 2 square root, which is equals to 2. So, minus 1 by 2 square root, end 2 1 by 2 square root, minus 1 by 2, plus 0. So, you have result here. 1 by 2 minus 1 by 2, result is 0. So, we will do cross multiplication vector. So, it is 0 cake. Within multiplication is equal to 1 cake. So, we can say that the matrix of set of orthogonal vector is called the orthonormal. This is the matrix of the orthonormal vector is called the orthonormal matrix. Now, cross multiplication equals to 0. Within multiplication is 1. And here, I am saying delta ij. Delta is the notation. Call it any notation. ij, first and second values. So, we have called it ij, which is equals to 1. So, we can say that if i equals to j, because it is within. Within, i equals to j. So, we can say that if i equals to 0, if i is not equals to j. Now, what have you got? Delta, which we have kept in condition. We have given the notation of delta ij, which is equals to 1. If i equals to j, it means within multiplication. And equals to 0, if i is not equals to j. So, we can say that the matrix, this is the matrix of the set of orthogonal vector is called the orthonormal matrix. This is what we have. This is what we have done with orthonormal. What is orthonormal? The multiplication we are doing in it. The multiplication we have within is equals to 1. And the cross multiplication we have is equals to 0. This is the concept of orthogonal and orthonormal. Now, next is the quadratic form. What is the quadratic form? A quadratic form in p variables x1, x2 up to so on xp is a homogeneous function. Consist of all possible second-order terms. We have to learn all possible second-order terms. We are not learning the first-order because it is on the quadratic form. What are the second-order forms we have? Now, a11x1 square, second-order, a22x2 square, up to so on, appxp square. Square terms means second-order. So, this is the cross-product terms, a12x1x2, cross-product, ax1 and x2 cross-product. Second-order, a13x13 again second-order, up to so on last, what you have? Ap-1xp-1 into xp. So, last you have xp-1xp. Now, sum up all of them. Okay, I will sum up all of them. After summing up, I have the final result. Double sum i varies 1 to p, j varies 1 to p, aijxixj. This can be written in the matrix form. Now, how do we write it in the matrix form? Let me give you the idea. So, now, you can sum up all of them. So, i1j1 means a11, xi, x1, j1, x1. So, what will happen if you have a11x1 square? First-order, similarly, x2 means i, you have 2, jb2. So, we have 2, 2, ij2, 2, x2, x2. Take the scale of this. Second term is done. Now, we are looking at cross-product terms. In cross-product terms, we have i1. Okay, what did I do here? Sum i1, j2, x1 and x2. So, you have these cross-product terms. When we sum up all of them, we have double sum aijxixjr. Now, how do we write all of them in the matrix form? This can be written in the matrix form. If we go to the matrix form, we write double sum aijxixprimeax. i.e., you have the vector x, we have the matrix and x again vector. So, x is a vector of random variable and matrix a is defined as. So, matrix a is the constant term we have defined. i.e., a11, constant, a12, constant. We multiply all of them by xprimex. Suppose, let an example of x1, x2. Simple, I have two random variables. I have taken x1, x2 and a is the matrix, which is equal to hypothetical. So, I am taking any one. One, two, three, four. Now, you have a vector of x1 and x2. So, after multiplying, I have a final step. x1, x2. Now, you multiply it here. After multiplying, I have x1 plus 2x2. So, 3x1 plus 4x2. Further, if I multiply it, I have results. x1 square plus 2x2x1 plus 3x1x2 plus 4x2 square. So, x1 square plus 5x1x2 plus 4x2 square. So, look at the equation. What is the equation? It is a quadratic equation. So, we are representing the quadratic equation in this way. Now, it is equal to xprimeax. x is the vector, a is the matrix and x is also the vector. This is the quadratic form. Now, what is the positive definite and semi-positive definite? Now, positive definite, a square matrix a and its associated quadratic form, अब आम ने प्रीविस, quadratic form की है, is associated quadratic form, is said to be positive definite. If xprimeax greater than zero, if it is greater than zero, so we can say that it is a positive definite. And if it is a greater than equals to zero, so we can say that the semi-positive definite. For example, we have the matrix आ, which is equals to the 1, 2, 1, 3. This is a hypothetical. आ is the matrix of 1, 2, 1, 3. For order 1, how will we find the positive definite? For order 1, I have taken the determinant of this factor. So, if I take the determinant of 1, do you know that the determinant of 1 is equal to 1? So, 1 is greater than zero, so we can say that this is the positive definite. Again, this is order 1. If I take order 2, it means that I have the matrix, because I have the matrix order 2. I am taking the determinant of this. Which is equals to 3 cross 1, 3 into 1, minus 2 into 1. So, which is equals to 3 minus 2, which is also equals to 1. And this is greater than zero. So, we can say that if you have the matrix आ, this is called the positive definite. What should be the X prime A greater than zero? For every X is not equals to zero. Any value of X is not equal to zero. So, this is called the positive definite. And semi-positive definite. What is semi-positive definite? Its result will be greater than zero. If it is greater than zero, it means that it is positive definite. When we have equals to zero, then for equals to zero, we will always have semi-positive definite. So, here is the example of X transpose A X. So, X which is equals to 1, 2 is hypothetical. A, 1, 2, 1, 3 and A, 1. Okay. We have solved this further. After solving it, I have got the result of 3, 8 and 1, 2. We have solved this further. So, I have got the result of 18. And 18, which is greater than zero. If it was equals to zero, we would have X transpose A X in the matrix. If its result was equals to zero, then what would have happened? Semi-positive definite. So, this is the greater than zero. So, we can say that this is the positive definite matrix. So, positive definite quadratic form has the matrix of full rank. We can write them A which is equals to Q into Q prime. And Q is the non-singular. So, we have considered that A is equal to Q into Q transpose. And Q is the non-singular. So, we can consider this A matrix.


I welcome members to the 31st meeting in 2015 of the Delegated Powers and Law Reform Committee. As always, I ask members to turn off mobile phones, please. Agender item 1 is a decision on taking business in private. It's proposed that the committee takes item 8 in private. That's reliable committee to consider its approach to the scrutiny of the Bankruptcy Scotland bill. Does the committee agree to take this item in private, please? Agender item 2 is instrument subject to negative procedure. No points have been raised by illegal advisers on the European Maritime and Fisheries Fund grants Scotland regulations 2015, SSI 2015, 359, not on the natural mineral water, spring water and bottle drinking water Scotland amendment regulations 2015, SSI 2015, 363, the private rented housing panel 103rd party applications Scotland regulations 2015, SSI 2015, 369 and the diligence against earnings variations Scotland regulations 2015, SSI 2015, 370. Is the committee content with these, please? Yes. Agender item 3 is instrument not subject to any parliamentary procedure. The Act of Soderent Sheriff appealed court rules 2015, SSI 2015, 356. This instrument contains defective drafting rule 56, includes provision as to where a document or other matter is intimated in terms of the rules to the solicitor for the receiving party. SSI 2 and 3 of the rule are in conflicting terms, where intimation is given at 1700 hours precisely on any day. SSI 2 provides the date of intimation is that day. SSI 3 provides the date of intimation is the next day. A Lord's President's private office has undertaken to lay a further instrument, which would correct this error in time for the Act of Soderent coming into force on 1 January 2016. Does the committee agree to draw this instrument to the attention of the Parliament on reporting ground? I, as rule 5.6, appears to be defectively drafted. Yes. No points have been raised by illegal advisers on the Community Empowerment Scotland Act 2015, commencement number 2, order 2015, SSI 2015, 358. Nor on the Water Act 2014, commencement number 1, Scotland order 2015, SSI 2015, 360. Nor on the Mental Health Scotland Act 2015, commencement number 1, transition, null and saving provisions order 2015, SSI 2015, 361. Nor the Scottish independence referendum, chief counting officer and counting officer charges and expenses order 2015, SSI 2015, 368. Nor the act of a journal criminal procedure rules 1996, amendment number 5, request for final decision and reasons 2015, SSI 2015, 375. Is the committee content with these instruments, please? Yes. To enter item 4 is the Abusive Behaviour and Sexual Harm Scotland Bill. The purpose of this item is for the committee to consider the delegated powers in the bill. Members have seen a paper on this and the recommendations. This will form the basis of a report to the lead committee. The draft report would not be discussed by the committee before it is published. Does the committee have any comments, whereas the committee content with the delegated powers in sections 8, 14, 4A, 40 and 43 of the bill? Content. Thank you. To enter item 5 is the Criminal Verdict Scotland Bill. Members are again invited to consider the delegated powers provisions in this bill. Members have again seen a paper and if they are content with the recommendations in the paper, this will form the basis of a report to the lead committee. That report will not be discussed by the committee before it is published. Is the committee content with delegated powers in sections 4 and 5? Content. To enter item 6 is the Higher Education Government Scotland Bill. This item of business is for the committee to consider the Scottish Government's response to its stage 1 report. Do members have any comments, please? Is the committee content to note the response and, if necessary, reconsider the bill after stage 2? Content. To enter item 7 is the Successions Scotland Bill. This item is for the committee to consider the Scottish Government's response to its report on the delegated powers in this bill. Does the committee have any comments, please? Is the committee content with the response and, if necessary, reconsider the bill after stage 2? Content. I move this meeting into private. Thank you.


Now we present Herbert Marshall as the man called X. The Saturday Night feature on NBC's five-show festival of comedy, music, mystery, and drama brought to you by your local Ford dealer, who is now displaying the new 1951 Ford, the car that's built for the years ahead. By RCA Victor, world leader in radio, first in recorded music, first in television. And by the makers of Anison for fast relief from pinup headache, neuritis, neuralgia. Herbert Marshall as the man called X. Wherever there is mystery, intrigue, romance, in all the strange and dangerous places of the world, there you will find the man called X. Ladies and gentlemen, I bring you an invitation. An invitation to examine the fine new Ford for 1951. It's on display now at your neighborhood Ford dealers, and we want you to see it. We want you to drive it, because this is the finest Ford ever produced. It's a quality car, a car that's designed and built to give you lasting satisfaction in the years ahead. When you inspect the 1951 Ford, you'll find that it offers 43 look-ahead features. Features that will keep it young in performance, young in style for years to come. Among them, you'll find the new automatic ride control for an easy ride, a level ride. The automatic mileage maker for real fuel economy, and new luxury lounge interiors with rich color harmonized Ford craft fabrics. We invite you to see all 43 look-ahead features of this great new Ford for 1951 at your Ford dealers tomorrow. Under the frowning volcanoes of Guatemala lie the ruins of a once proud city, Santiago de los Caballeros La Nefa. The walls of a more than 100 churches and convents crushed by an earthquake in 1773. Now even her name is almost forgotten. The tourists who pass through call it only Antigua, the old, the ancient, and a thin half-hidden road that forks off the highway from Guatemala City leads not to the past, but to the present, perhaps even the future. A small blue roadster hesitates and then turns up this crude trail. Americano. That's right. The senor has taken the wrong road. You'll return to the highway at once. This isn't the road to Dr. Alvarez Laboratory. Laboratory? I don't know what you mean. Who are you? My name's Ken Fursten. Fursten? Oh, yes, yes, yes. Of course, Dr. Alvarez is expecting you. I am Capitan José Tavoso, chief of the guards assigned to the doctor. You may drive on. I will ride on the running board. That won't be necessary, Captain. I can find my own way. On the contrary, senor Fursten, the guards ahead have orders to kill any intruder if you are ready. It's to see you. Hello, Dr. Alvarez. Dr. Alvarez. Oh, come now. You know me better than that. It's been quite a while, Fernando. How are you? Much too long, it has been. You, uh, you had no trouble getting to Guatemala. The only difficulty I had was getting to this place. Just what are you doing? What are you doing here, Fernando? Guards all around, a laboratory in a ruined convent. I could not explain in the wire I sent to your bureau, Ken. I could not trust this matter even to the usual diplomatic channels. Oh? Ken, have you ever heard of Professor Zender? Professor? You mean Hilda Zender, the German bacteriologist? Yes. Of course, one of the most promising young scientists in Europe. Why, there was even talk of awarding her the Nobel Prize about ten years ago. Yes. Professor Zender is here. Oh. During the war, she escaped from Germany and fled to Brazil. Yeah, yeah, I know that. After I became head of the Guatemalan Public Health Service, I invited Professor Zender to continue her research under the auspices of my government. I see. She has been working on ways of combating German warfare. Unfortunately, this work has quite by accident produced a new and terrible means of bacteriological attack. A virus cholera. A virus cholera? Yes, Ken. A cholera that spreads through the air, rather than by the usual media of infection. A cholera for which there is at present no immunization, no cure. No cure? Fernando of the wrong country got hold of this. That is why I have sent for you. Phew. You must take the virus culture back to the United States. Perhaps your scientists will be able to develop a preventive or a cure. At least, it will be safer there. There have already been two attempts to break into my laboratory. Why not destroy the culture? Because, fantastic as it may sound, this cholera virus is apparently indestructible. All right, Fernando. I'll get a plane out in the morning. Good. I've just discovered that the test... Oh, I did not know you were busy. I must see you alone at once. It is of the utmost importance. This is Mr. Thurston, Professor Zender. Mr. Thurston. Oh, it is good that you have arrived. You see the test tube containing the cholera culture? It has disappeared. Was it? I have searched everywhere. Someone must have broken in and stolen it. Come with me. I will show you. Ah, look here, Fernando. This window latch has been forced. Ah, see? Yes. I wonder how whoever did it managed to sneak past your guards. Professor Zender, where was the test tube of cholera virus kept? In this rack at the end. Uh-huh. Anything else, Missy? No, I do not think so. I have not had time to check, thoroughly. I thought it more important to notify you and Dr. Elver as at once. Yes, of course. The test tube is sealed. Certainly, Mr. Thurston. Labeled? Yes, yes. In my handwriting, like all the others in the racks. Oh, in German. Who else knew about this cholera discovery? No one. No one. Only the doctor and I. Pedro? Why, yes, I had forgotten him. Pedro? My secretary, Ken. Pedro Martinez. Ah, but no. He knows nothing about science, which is why I employed him. I even have to spell out the scientific terms for him. Is he around? He has been away all week on a vacation at Lake Atitlan. Hmm. Could be a very convenient vacation, couldn't I? Uh, Mr. Thurston, this is such a serious matter that I must be completely frank. Roger Sibley was here with me last night. Sibley? He is my fiance. He drove me out here from my home in Guatemala City so that I could check on an experiment. Could you have seen the tube of the virus cholera? Yes. Yes, he did see it. I had to warn him against picking it up. I am acquainted with Mr. Sibley, Ken. He is a young Englishman and a very fine person. There would be no reason to suspect him. Obviously then, Mr. Thurston, it must have been someone we do not know, someone from the outside. If whoever has this test tube does not realize exactly what it is, does not understand. Yes. There could be a cholera plague down here inside of three days. I'll check with you later at your office in Guatemala City. So long, Fernando. Professor Zender. The operation developing in Formosa, and I think that you'd better... Sorry, Chief. Afraid I'll have to stay here a little longer. Why? Anyway... He wanted to introduce me to a friend of his. Hilda Zender. My hotel room in Guatemala City. What? Hilda's engaged to Roger Sibley. You'll remember him, Chief. Sure, he's the son of Ford Sibley, the man who... Yes, right. Well, anyway, Hilda is working down here with Alvarez. Something similar to the Westbrook project. Oh. She is doing quite well. Too well. But her best work is missing. So I'm going to help her look for it. All right, Ken. I'll leave it up to you. Let me know what happens. Sure, Chief. Say hello to Miss Books for me. So long. Operator. Operator, is someone else on this line? Sure, Mr. Thurston. It's me. Bacon. Where the devil are you? The hotel switchboard. Making some good connection. Work I was caught up for. But my cousin Angela isn't feeling so hot. So I'm taking over in her place. I'm being what you might call a big operator. Hey, Mr. Rex? Listening in on private conversations. Mr. Rex, how can you talk to me like that, especially when you owe me so much money? I owe you. Of course. I hope you don't think it was cheap finding out where you were going and getting all the way down here. Like I was telling you. Wait a minute, Mr. Thurston. Something is making a noise. Don't hang up. Hotel St. Carlos Grand, what do you want? Yes, Mr. Sibley? A plane to Lisbon? You've been a bar, OK? I'll let you know when the next one is leaving. Like I was saying, Mr. Thurston, if you... Mr. Thurston. I'm saying so. When a man drinks this early in the afternoon, it's usually because of a woman. Eh? I'm afraid I wouldn't know. Sorry. My name's Thurston. How'd you do? I'm... Sibley, Roger Sibley. Now, if you'll please excuse me. Roger Sibley? More than I was wrong about a woman driving you to drink. What do you mean by that? I was fortunate enough to meet your fiancee this morning. She's very charming. You met Hilda? Yes, through Dr. Alvarez. You're a very lucky man. You didn't know her before. No, should I? I just wondered. I understand your plan is to get married soon. No. No, I don't think so. Engagement's off. I'm leaving Guatemala as soon as I can get out of here. Oh, isn't this a little sudden? Roger, darling. I've been looking all over for you. Hello, Hilda. And Mr. Thurston, you've met each other. How nice. Come along, Hilda. I want to talk to you. Of course, dear, and I want to talk to you. After all, I haven't seen you since last night, and you promised to call me early this morning. Did you forget? Come along, Hilda. All right, darling. Don't be so impatient. Goodbye, Mr. Thurston. We will see you again. Sure, sure. You'll see me. I'd like to talk to Dr. Alvarez. His name's Thurston. Oh, yes, Mr. Thurston. The Doctor Left Award. He has been called to a conference at the Presidential Palace. He will be back later this afternoon. If there is a message... Another important. You're his secretary? Yes, sir. I understood you were on a vacation. I came back quite suddenly this morning. Mm-hmm. Yes, the weather at Lake Attila suddenly changed. It became most unpleasant. Oh.  I'm afraid I haven't been here long enough yet to draw any conclusions.  Why not? The weather here may change quite suddenly, too, and become most unhealthy.  We will continue with the man called X in just a moment. Here's a word from RCA Victor. If you've ever built a house, you know it costs far less to include all the rooms you'll ever want at the start than to add them on separately later. Well, the same things true about buying home entertainment equipment today. You saved tremendously in the end by shooting the works in the beginning, by buying a complete combination set, including console radio by RCA Victor, world leader in radio, console phonograph by RCA Victor, first in recorded music, and, of course, console television by RCA Victor, first in television. You get three worlds of entertainment in one beautiful, beautiful cabinet for one beautiful, beautiful price. Visit your RCA Victor dealer soon and experience for yourself the matchless glories of sight and sound pouring from the 16 and 19 inch screens and the golden tone systems of RCA Victor's magnificent console combinations, each built with RCA Victor's most powerful television chassis. Its famous RCA Victor million proof television proven in well over a million homes. Now act two of the man called X starring Herbert Marshall with Leanne Balasco as Pagan Zelschmitt.  Ken Thurston, searching desperately for the missing disease culture, receives a thinly veiled warning at the Department of Public Health. The weather here may change quite suddenly, too, and become most unhealthy.  There may be something in what you say, Pedro, but a man may become very unhealthy for a lot of people, even you. I do not think so. I'm a native and accustomed to the climate. Suppose there were cholera epidemic. Cholera? I do not understand you. It's too bad. I understood you. Well, please tell Dr. Alvarez I'll call him later. Of course. Are you home, Mr. Thurston? I've been looking all over for you. What happened to your job at the hotel, Pagan? You called that a job? Paid hardly nothing. Anyway, how was I to blame when the manager was talking to that cute little chick in 314? And his wife got cut in on the same lie. Oh, no. Boy, did I tell him off. I said my good friend, Mr. Thurston, was in Guatemala and he'd be like a lost shepherd without me. I sure was right, too. Who else could tell you about that pretty little Petunia who came to the hotel asking for you? Pretty? You mean blonde with a German accent? No, a local type. Brunette with a figure like the hands on an hourglass. So, you see how much you need me, Mr. Thurston? I could find out everything about her for just a couple of bucks, say 50. Oh, never mind. You don't want me to find out about who she is and where you can meet her? If it's important, she'll turn up again. Well, if you're going to act that way about her, her name is Maria Santos and she makes with the rumba at the Casablanca Dance Hall. She wants you to come there before 8 o'clock tonight and see it's almost 8 now. Any idea what it's all about, Pagan? Oh, I don't know. Some double talk about germs or bugs or something. Oh, the Casablanca. Come on, Pagan. There she is, Mr. X, that fancy little flower sitting at the table in the corner. Wait here, Pagan. Good evening. Do I know you, senor? Do you? There are so many men who come to the Casablanca. It's hard to remember them all. But I don't think I would have forgotten you. Thanks. May I? Oh, please, please, sit down. Well, senor? I thought perhaps you do the talking, Maria. Who are you, senor? My name is Thurston. Why did you not say so before? I look all over for you. It's most important. You must leave here and go to a place... Ah, Mr. Thurston, we meet again. How pleasant. Oh, Professor Sandra, Mr. Sibley. I see you're still with us. Yes, a bit of difficulty with plain reservation. May we join you and your, uh, friends? Uh, sorry, I was just about to leave. So early? Well, perhaps we will run into you later. See you today. I'll see you today, Professor. Listen, senor Thurston. A small house in Antioa, a cross from the monastery ruins by the main square. Bring Dr. Alvarez there at midnight. Oh, wait a minute. What's all this about? José Toboso will explain. I can't... Since you're leaving, Thurston, I thought I might ask the young lady for dance. If Professor Zenda doesn't object. As matter of fact, it was her idea. I should be most happy to dance with you. Buenos noches, senor Thurston. It must be the house that girls described to you can. It is the only habitable building near the main square. Hmm, nobody around. Let's get out of here, Mr. Thurston. All these ruins around here, it gives me the creeps. Why the door-pig? Why bother? It's sure to be locked. Nobody goes off and leaves. How do I like that? Looks like I'll need this flashlight. Why would anybody want to live way out here?  Hey, speaking of ghosts, Mr. X, under the bed, under the sheet. That's no ghost, Pagan.  Yeah, it's Captain Tabusso. Why, why is he all purple-like? What happened to him? Colour isn't different under... His skin. Colour. How much longer are we going to tramp around these old ruins, Mr. Thurston? I don't know, Pagan. All this fuss for a little test, you... What difference does it make? You saw Captain Tabusso's body. Well, sure, but, uh... You mean that that's what killed him? The test, you? Why don't we come back in the morning? It'd be easier to find it then. If we haven't found it before morning, this whole area will have to be quarantined. Ask along with it. Tim, over here quickly.  Maybe. No, not by risk-culture, but this. Roger Sibley. Don't tell me this character got the colic, too. No, he was lucky when Captain Tabusso, a bullet through his brain. Well, if you ask me, there's enough ghosts around this joint already. There will be more. What's that? Look out, Mr. Thurston! Give me that gun, will you?  I said, give it to me.   There. That's better. I got the gun, Mr. Thurston.   No, Maria. He's dead. I just came from his house. He was dead when we got there, too. I don't believe you. Would you believe Dr. Alvarez? Mr. Thurston is speaking the truth. Captain Tabusso died of the cholera. I hope you did not touch him. Cholera? The plague? How did this happen? That's what we're trying to find out. When did you last see Jose alive? About noon. He came to my room and asked me to find you. Where had he been before that? I don't know. I understand. You don't understand. I was his wife. I would not let him tell anyone. An army officer married to a girl from the Casablanca. He would have been left dead. Try and remember, Maria. Where had he been this morning? I'm not sure. Pedro. Why does it matter now? It won't bring him back to me. Where does Pedro live, Fernando? Guatemala City, 13 up in the north. Come on, Pagon.  Maybe she shot this other character with this. Simply. Not with that gun. It's too small a caliber. Whoever murders him, use a .38. Come on, Pagon. And that does it. What's going on in here anyway? Breaking into a man's house in the middle of the night. Shut up and start looking for the test tube. Oh, that thing again. I wouldn't look for it if you paid me. Well, maybe if you paid me enough. But even that, I wouldn't look very high. Quiet. All right, all right. Hey, Mr. Thurston. Hello, Pedro. Is this what you're looking for by any chance? Hey, he's got the test tube. And a gun. Two very dangerous weapons. Glad you realize that, Pedro. The gun is for you. And the test tube? For a country that would never use such a horrible means of warfare. A peace-loving country, unlike the warm-mongering United States. Hmm. Well, I'm der Einerschlange Steyler. Veerd Manchmal auch gebissen. Talk English, Mr. Thurston, or Spanish, so that I can understand you. It's an old German proverb. Surely you're familiar with it. I do not speak German. It means that if a man steals a snake, he may get bitten. I was wondering if that might apply to you. But of course, that's wishful thinking. You've had a series of inoculations against cholera, your immune. Immune? Oh, you must be. Or you wouldn't be so foolish to stand there holding that test tube. I am sure it puts me in no danger, Mr. Thurston. Pagan, remember how Captain Toboso looked? Captain Toboso? He died of cholera tonight. Yeah. Yeah. Oh, you should have seen him. All purple in his face twisted the... Oh, very horrible death.  But of course, you have nothing to worry about, Pedro, unless... Pagan. Huh? Yes, Mr. Thurston? Speak up so I can hear what you're saying. His face. The cholera is faced. You see? What's wrong with it? Yes, yes, yes. I think so, too. Whatever you do, don't go near him. Mr. Thurston. You mean, he's got the colic? Oh. Mr. Thurston. With that much color, there should be other symptoms, too. Dizziness, pains in the legs. He don't look too steady to me right now. Listen to me. He'd feel a tightening of the throat, too. No. Stop. You're lying. There is nothing wrong with me. Hey, look at his face. There is nothing wrong with me. That mirror on the wall, Pedro. What? Perhaps you better look for yourself. I will. What you say is not true. All right, Pedro. The best tube. He's going to drop it. Grab it. Oh. Now, then, Markiness. All right, Mr. X. You've knocked him out. But what about me? I'll be catching the colic. Mr. X. As long as that tube is sealed, you haven't a thing to worry about. Huh? But you told him. You said I thought. Hey. Oh, I get it. Mr. X, you were just stringing him along? Oh. But wait a minute. That Captain fellow, he really had something wrong with him. To both of us solve the test tube here, he must have opened it. Then when he realized it was from the lab, he sealed it up again and tried to get in touch with me. He was too late. Oh, sure, Mr. X. You're absolutely right. That's just the way I forget it happened. Oh, sure. You don't know how relieved I am. This whole thing, I have felt responsible. Yeah? Ken, I think Roger may have told you. We aren't engaged any longer. A few days ago, I would have felt so alone without him, but now, since I've met you... Roger is dead, Hilda. What? That shouldn't be such a surprise, since you killed him. You are not serious. Pedro. That gun we took from Pedro has been fired for at least 24 hours.  I do not even have a gun. Why do you do it, Hilda? I cannot lie to you, Ken.  I was sure that Pedro had stolen the test tube, and when I found out that Roger was planning to take it to Europe, I had to stop him. Roger Sibley. I've worked with his father in England, Hilda. And I know all about the fine job Roger was doing for his government. Ken, I... Roger found out what you were doing. That's why he tried to get away from Guatemala. That's why you had to kill him. No, no. Roger was working with Pedro. He ordered him to steal the test tube from the rack and the laboratory. A rack of tubes all marked in German. A language Pedro didn't understand a word of. No, Hilda. He wouldn't have known which tube to steal. He was just a messenger for the color of a culture you stole and passed on to him. And if I did, you will do nothing to me. I am the only person in the world who understands how that culture was developed. You will need me to develop more. I am a scientist. The most valuable scientist in the world. No, Hilda.  I just can't believe it, Mr. X. Such a pretty petunia and with all her brains to do a thing like that. Boy, did she look sick when Dr. Alvarez in the cups took her off to the cling. Sick or even the dead friend of hers who thought he had the colic. She was sick, Pega. What? Not with Conor. There are other diseases more terrible and more dead than those that attract the body. Sicknesses of the soul and spirit. But at long last we are learning how these diseases can be treated and cured with large doses of truth and justice and freedom. Our star, Mr. Herbert Marshall will return in just a moment to tell you about next week's story. No matter what you now take for headache relief, we urge you to try Anacin for the incredibly fast relief these tablets bring the next time you're suffering from a headache. Now, the reason Anacin is so wonderfully fast-acting and effective is this. Anacin is like a doctor's prescription. That is, Anacin contains not just one, but a combination of medically proven active ingredients in easy-to-take tablet form. Thousands of people have received envelopes containing Anacin tablets from their own dentist or physician, and in this way discovered the incredibly fast relief Anacin brings from pains of headache, neuritis or neuralgia. So the next time a headache strikes, take Anacin for this wonderfully fast relief. Anacin, A-N-A-C-I-N. Anacin at any drug counter in handy boxes of 12 and 30. Economical family size bottles of 50 and 100. Now, here again is our star, Mr. Herbert Marshall. Thanks for being with us. Next week, Mr. X goes to Syria, where he learns that every inch of the new international oil pipeline holds danger, not only for him, but for the peace of the entire world. And there's no help from Leon Bolasco as Pagan Zelschmitt. So join us, won't you, where next I return is the man called X. It's a Saturday night feature on NBC's five-show festival of comedy, music, mystery and drama, brought to you by our local Ford dealer, who is now displaying the new 1951 Ford, the car that's built for years ahead. And by RCA Victor, world leader in radio, first in recorded music, first in television, and by Whitehall Pharmacal Company, makers of Anacin, Colinus, Bicidal, and other fine drug products. Good night. The man called X, starring Herbert Marshall, is a J. Richard Kennedy production, with music composed and conducted by Felix Mills. Tonight's story was written by Robert Libet and Frank Burt. All characters and incidents on this program are fictitious, and any resemblance to actual characters or incidents is purely coincidental. Be sure to listen tomorrow evening for The Big Show with Tallulah Bankhead, Margaret Truman, Fred Allen, Danny Thomas, Douglas Fairbanks Jr., Mindy Carson, The Sons of the Pioneers, and Meredith Wilson. And until next week, same time and same station, this is Jack Latham saying, Good night for The Man Called X. Remember, Margaret Truman visits Tallulah Bankhead and The Big Show Sunday on NBC.


Hello. You might want to use GeoGeba to make a 9 pin geoboard that you can then draw on your whiteboard. To do this, you need to open GeoGeba on your machine. When you do that, it will look like the screen you have here. What you then need to do is close the algebra window by clicking there. And just above this drawing window, the three possibilities show or hide the axis. Let's hide the axis so we now have a completely blank screen. To draw a 9 pin circular geoboard, let's first construct a regular polygon. We need a regular polygon with 9 sides. Putting in 2, change the 4 which comes automatically to the 9 and press OK. That gives me a 9 pin regular polygon. Now I want those 9 points to be round the circle, so I need to construct a circle round those 9 points. The easiest way is to draw a perpendicular from one point to the opposite side and from one of the other points to the opposite side. Where those two points meet will be the center. So if I highlight those two there, where they meet, that gives me the center. I now want to draw a circle, so press on that and then out to there and I have constructed the circle. Unfortunately now I have rather more than I want, all the constructions are there. So if we go to the last pull down menu, I can show or hide the object. We don't want to delete them, we want to hide them. Hide that construction line, that construction line and that polygon. If we do that, then we have hidden all the construction points and we now have a 9 pin circular geoboard. At this point, the best thing to do is to save it. If you press save, I can put 9 pin board and I need to call that ggb and it's a good idea to save it in whatever file you want. I'm saving it in my file there and just do it. Yes, I had already done this. So I now have a 9 pin board and that is saved. I can at any time now draw one of the figures on it using segment between two points. This segment from there to there and from there to there and from there to there. So if I've done the wrong one, it doesn't matter. Go to the top right hand corner and press the yellow button or if I want it back, the green one. So I can always undo the last one and undo the one before. So if I want that and now still on segment, I can draw in that triangle. Later on, I might wish to draw in the line to the center and I can easily draw that too. And if you then have this available to you on your whiteboard and I can undo that in order and get all of that. There is another tool that you might find enormously useful which is the polygon tool. So for instance, if I start to draw a polygon from that point, skipping one of the pins and then skipping one, skipping one, skipping one. Going round, you could not do this with a piece of elastic. I now have that polygon. Move back to the pointer tool. Maybe you don't want that polygon to be brown and like that. So if you double click in the polygon, that polygon, and I can go for the odd deep properties. The second polygon is the one we've got. The first one was the regular nine sided one. The color, I could make that color black and I can make it more filled in or less filled in. And if you go back to the other ones, you can explore what you can do. You can make a line sticker or you can do different line styles if you want it. And basically, you can show the object or not show the object. So you can play around on the preferences there until you have what you want. If at the end of this time we now press the red button to close it, do you want to save the changes? The answer is don't save. Because if you press don't save, you will still have on your file the original nine pin board.