How to collect coefficients of the same powers?

I am using the Symbolic Math Toolbox, and define polynoms as symbolic objects, eg:

syms a x y;

P = x^2*y + a*x*y^2 + x*y^2;

I would need to find a function that collects coefficients of the same powers, something like

collect_coeff(P,x*y^2)

that will return

a + 1

Would anyone have a solution to my problem? Thanks in advance!

Answer 1

[Mohammad Abouali]

check if collect() works for you.