{"action":"created","issue":{"url":"https://api.github.com/repos/andresmmera/qucs/issues/3","labels_url":"https://api.github.com/repos/andresmmera/qucs/issues/3/labels{/name}","comments_url":"https://api.github.com/repos/andresmmera/qucs/issues/3/comments","events_url":"https://api.github.com/repos/andresmmera/qucs/issues/3/events","html_url":"https://github.com/andresmmera/qucs/pull/3","id":108749943,"number":3,"title":"Speed-up Klopfenstein taper and ABCD matrix calculations","user":{"login":"in3otd","id":9018179,"avatar_url":"https://avatars.githubusercontent.com/u/9018179?v=3","gravatar_id":"","url":"https://api.github.com/users/in3otd","html_url":"https://github.com/in3otd","followers_url":"https://api.github.com/users/in3otd/followers","following_url":"https://api.github.com/users/in3otd/following{/other_user}","gists_url":"https://api.github.com/users/in3otd/gists{/gist_id}","starred_url":"https://api.github.com/users/in3otd/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/in3otd/subscriptions","organizations_url":"https://api.github.com/users/in3otd/orgs","repos_url":"https://api.github.com/users/in3otd/repos","events_url":"https://api.github.com/users/in3otd/events{/privacy}","received_events_url":"https://api.github.com/users/in3otd/received_events","type":"User","site_admin":false},"labels":[],"state":"closed","locked":false,"assignee":null,"milestone":null,"comments":4,"created_at":"2015-09-28T21:24:57Z","updated_at":"2015-09-29T12:56:09Z","closed_at":"2015-09-29T05:42:59Z","pull_request":{"url":"https://api.github.com/repos/andresmmera/qucs/pulls/3","html_url":"https://github.com/andresmmera/qucs/pull/3","diff_url":"https://github.com/andresmmera/qucs/pull/3.diff","patch_url":"https://github.com/andresmmera/qucs/pull/3.patch"},"body":"Here is an update to greatly speed-up the tapers calculations, especially the Klopfenstein.\r\nThe two main points are:\r\n- the overall ABCD matrix calculation is now done with a fixed number of sections (could be made dependent on the impedance step, did not try to check if it is worth)\r\n- the Klopfenstein taper impedance is computed using a nice recursive formula\r\n\r\nEnjoy! and thanks again for all the work!"},"comment":{"url":"https://api.github.com/repos/andresmmera/qucs/issues/comments/144050160","html_url":"https://github.com/andresmmera/qucs/pull/3#issuecomment-144050160","issue_url":"https://api.github.com/repos/andresmmera/qucs/issues/3","id":144050160,"user":{"login":"andresmmera","id":13180689,"avatar_url":"https://avatars.githubusercontent.com/u/13180689?v=3","gravatar_id":"","url":"https://api.github.com/users/andresmmera","html_url":"https://github.com/andresmmera","followers_url":"https://api.github.com/users/andresmmera/followers","following_url":"https://api.github.com/users/andresmmera/following{/other_user}","gists_url":"https://api.github.com/users/andresmmera/gists{/gist_id}","starred_url":"https://api.github.com/users/andresmmera/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/andresmmera/subscriptions","organizations_url":"https://api.github.com/users/andresmmera/orgs","repos_url":"https://api.github.com/users/andresmmera/repos","events_url":"https://api.github.com/users/andresmmera/events{/privacy}","received_events_url":"https://api.github.com/users/andresmmera/received_events","type":"User","site_admin":false},"created_at":"2015-09-29T12:56:09Z","updated_at":"2015-09-29T12:56:09Z","body":"Yes, you win. \r\nx/2 and x*.5 produce exactly the same assembly code when using -O2 or -Ofast flags"}}