How do I create a vector which elements are the output of another vector run through an equation?

Okay so I have an equation (a polynomial) and a starting vector. What I need is for each element of the vector to be input into the polynomial and the output of that be made into a new vector. I hope that makes sense.... essentially what I have is y=x^2 p=[1;2;3;4] and what I need to happen is have some way to make a vector r such that r=[1;4;9;16]. Does anybody know how to do this?? Thanks!

Answer 1

[KSSV]

x = 1:4 ;
y=x.^2 

y = 1×4

1 4 9 16

[Torsten]

But as you see above, it gives back a vector. So something must be wrong on your side.