Function vpa in matlab GUI

hi guys,i have been trying to get this piece of code to work for a couple of hours now but to no avail. It will be more appreciated if i can get help. This works fine when i try to display on the command window but doesn't work when i do the same on the gui. a sample of the code is shown below;

syms Pw1
Pw=((3*M)+sind(IF))*Pw1+(sind(IF)-M)*(sqrt(((Y-Pw1)^2)+Z)+X)-(4*BC*R*sind(IF))+(4*CH*cosd(IF));
solPw1 = solve(Pw,Pw1);
       set(handles.PW_Breakout1,'String',vpa(solPw1));

Answer 1

[John D'Errico]

Your problem is that vpa does NOT create a string.

vpa(pi,50)
ans =
3.1415926535897932384626433832795028841971693993751

whos ans
  Name      Size            Bytes  Class    Attributes
  ans       1x1                 8  sym

As you can see, vpa creates a number, that is still a symbolic value. NOT a string.

What do you need to stuff a gui field? A STRING.

char(vpa(pi,50))
ans =
    '3.1415926535897932384626433832795028841971693993751'

What did char do? Take a look.

[Olaniyi Olufunmilayo]

Thanks a lot john, it works perfectly now