How do at write the equation

How do I make this equation work for a vector? (the vector x=[-1:0.1:1])

f = x 2 sin(πx)

I've tried the following:

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

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

It doesn't work.

Answer 1

[Torsten]

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

[Anna Nordin]

Thank you!

I thought you only had to pun "." after the x

[Torsten]

No. As soon as you multiply vectors elementwise, you have to use the ".*", "./", ".^" operators.

x.^2 is a vector, sin(pi*x) is a vector. To multiply them elementwise, you have to use ".*" .