Directional Derivatives of a Matrix
<p>I have 40 structures in my Workspace. I Need to write a script to calculate the directional derivatives of all the elements. Here is the code :  </p>

<pre><code>[dx,dy] = gradient(Structure_element_1.value);  
dxlb = min(min(dx));  
dxub = max(max(dx));  
dylb = min(min(dy));  
dyub = max(max(dy));  

[ddx,ddy] = gradient(gradient(Structure_element_1.value));
ddxlb = min(min(ddx));  
ddxub = max(max(ddx));
ddylb = min(min(ddy));
ddyub = max(max(ddy));  
</code></pre>

<p>This is the code for one element. I Need to find out the same for all the 40 elements and then use it later. Can anyone help with this.</p>