Extract exponent of term in symbolic expression?

Let's say I have some symbolic expression expression:

syms a b c d

expression=a^2*b^4*c^3*d

I want to extract the exponent of a given symbol. For example, if I ask for the exponent of a, it should give 2. I can't seem to find any solutions that work in the current version of Matlab. There must be some simple way of doing this in 2020 right?

Thanks in advance!

Answer 1

[Christopher Creutzig]

I believe you are looking for polynomialDegree:

>> polynomialDegree(expression,a)

ans =

     2

[Adam Darcie]

I knew something like this had to exist but I couldn't find it. Thanks!