Hi I need to graph functions like sin (x) and cos (x) but I get matlab fails let me try it and numstr2 str2num and does not work please

f=get(handles.entrada1,'string');
axes(handles.axes1);
x =-pi: 0.1: pi;
y = f;
plot (x, y);

Answer 1

[Azzi Abdelmalek]

f is a string, use

y = str2double(f);