MATLAB Answers

Symbolic value assignment in GUIDE

5 views (last 30 days)
function pushbutton1_Callback(hObject, eventdata, handles)
% hObject handle to pushbutton1 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
F=get(handles.edit1,'String');
D=get(handles.edit3,'String');
f = sym(F);
D = symvar(D);
turev =diff(f,D);
set(handles.text2,'String',turev) % there is an error here

  0 Comments

Sign in to comment.

Accepted Answer

Geoff Hayes
Geoff Hayes on 20 Dec 2017
Muhendisleksi - try using char to convert the symbolic expression to a string that you can then set in the text control. For example,
...
turev =diff(f,D);
set(handles.text2,'String',char(turev)) % there is an error here
Unfortunately, I don't have the Symbolic Toolbox so I can't confirm if the above will work.

  2 Comments

Walter Roberson
Walter Roberson on 20 Dec 2017
Yes, that should work.
If you have a symbolic array, then if you char() it then you will get text that begins with 'matrix(' which you probably do not want. So for that, use
arrayfun(@char, SymbolicVariableNameHere, 'uniform', 0)
to get a cell array of character vectors with the contents. You would then have to decide how you wanted to present that array as text.

Sign in to comment.

More Answers (0)

Sign in to answer this question.