Wrong results with my GUI project

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;
end

and below the pushbutton I wrote;

     x = str2double(get(handles.edit1,'string'));
tau = TEmodel(x);
set(handles.edit2,'string',tau);

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?

Answer 1

[Thorsten]

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?

[ahmed Gamal]

it computes the time of a particle confined in a pore of radius r and it is independent of anything else and there are no units mistakes. I used the same function but to draw the results and I got right results. Is there any problem if I used the same function for two m files?

[Thorsten]

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.

Answer 2

[Rachit Kumar]

The output of function TEmodel for radius = 10 is 1.7463e+04. Hence, the issue is with the function TEmodel not with the GUI.