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what to do so that matlab recognizes the guide script function?

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Erwin Avendaño
Erwin Avendaño 2017-11-4
关闭： MATLAB Answer Bot 2021-8-20
when I do the script in the matlab guide if I use a command for example int (f, a, b) to find the area under the curve tells me that the function is not defined What should I do?
function pushbutton2_Callback(hObject, eventdata, handles)
syms
a=str2double(get(handles.edit7,'string'));
b=str2double(get(handles.edit6,'string'));
x=linspace(a,b,500);
y=get(handles.edit4,'string')
j=char(y);
z=int(j,a,b);
set(handles.edit8,'string',z)
axes(handles.axes3);
area(x,y);
grid on;

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Walter Roberson
Walter Roberson 2017-11-4
编辑：Walter Roberson 2017-11-4
Instead of
j=char(y);
you should
j = sym(y);
Then,
area(x,y);
should be
area(x, double(subs(y)));
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Erwin Avendaño
Erwin Avendaño 2017-11-4
YOU ARE A GENIOUS! ¡¡¡¡¡¡¡¡THANK YOU!!!!!!!!!!!!!!!!!!!!!!!!!!!!1

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