Where can I insert my Operation and How to display the result in Static Text?

I was trying to insert this operation: F=a1+a2+a3+a4+a5+a6+a7+a8+a9;(BUT IM GETTING THIS ERROR Undefined function or variable 'a1'. Error in Determinants>pushbutton1_Callback (line 335) F=a1+a2+a3+a4+a5+a6+a7+a8+a9;)

and display the determinants of F by using this det(F); in static text but I don't know how.

[Elias Gule]

In your pushbutton1_Callback: define a matrix 3 x 3 matrix.

M = zeros(3,3);
count = 0;
for k = 1 : 3
   for l = 1 : 3
     count = count + 1;
     key = ['a' num2str(count)];
     val = str2double(get(handles.(key),'String'));
     M(l,k) = val;
   end
end

set(handles.results,'String',num2str(det(M)));

where a1:a9 are represents tags for each text component assigned in a columnwise manner. GUIDE stores references to each component in the handles structure; this enables easy communication between the components. The hObject in the object's callback represents the current object; that is the object to which the callback is assigned.

So if you ever use guide for your GUIs, then the handles structure is your friend!!!

Answer 1

[Elias Gule]

Please see the attached files.