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Wrong results with my GUI project

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ahmed Gamal
ahmed Gamal on 29 Aug 2016
Commented: Thorsten on 31 Aug 2016
Hello, I wrote a code with GUI to solve an equation using functions. The idea is to insert an input in the first button(edit1) and upon pushing run (with push botton), the function works and reveal the output into edit2 button. My function is:
function tau = TEmodel(radius)
a = radius + 0.166;
b = radius./a;
c = 1./(2*pi);
d = 2*pi*radius;
e = d./a;
f = sin(e);
L = 2*(1-b+(c*f));
tau =1./L;
and below the pushbutton I wrote;
x = str2double(get(handles.edit1,'string'));
tau = TEmodel(x);
The problem is the wrong output. Because with input (in edit1)=10, the putput (in edit2) must be ~0.6 while I got 17462.9? Could anyone help me?

Answers (2)

Thorsten on 29 Aug 2016
Edited: Thorsten on 29 Aug 2016
There is an error in your formula / function. I also get TEmodel(10) = 17462.89, w/o any GUI.
What should TEmodel compute based on the radius?
Maybe there is an error due to angles given in radians vs. degree?
Thorsten on 31 Aug 2016
No, you can use the function in as many m-files as you like. But the function returns 17462.89 for input of 10. So if this is wrong, you have to rewrite your function.

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Rachit Kumar
Rachit Kumar on 29 Aug 2016
Edited: Rachit Kumar on 29 Aug 2016
The output of function TEmodel for radius = 10 is 1.7463e+04. Hence, the issue is with the function TEmodel not with the GUI.


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