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How to output result to static text uicontrol?

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AnDron
AnDron 2012-10-31
Hello. I wanna to develop GUI application for finding derivative of function.
function B_Callback(hObject, eventdata, handles)
syms x;
f=cos(x);
set(handles.Static_text1, 'String', diff(f));
But it works wrong.

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回答（1 个）

Akiva Gordon
Akiva Gordon 2012-11-13
This is likely not working because diff(f) is of type SYM, and the SET function is expecting a string of type CHAR. In order to do this, you can try changing the type by using this instead:
set(handles.Static_text1, 'String', char(diff(f)) );

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