How do I do this function?

x=[-1:0.1:1]

f=x.^2.*sin(pi.*x)

How do I solve this function for g in code?

g=f if f>=0

g=0 if f<0

I tried doing:

if f>=0

g=f

else

g=0

end

It didn't save as a matrix, only as g=0

Please help?

Answer 1

[John D'Errico]

x = -1:0.1:1;
f = x.^2.*sin(pi.*x);
g = max(0,f);