Matrix multiplication along a specified dimension?

I have a 2x2xN matrix, A, and a 2xN matrix, X. I want to multiply each Nth 2x2 matrix in A by the Nth 2x1 matrix in X. I can do this with:

for i = 1:N
    B(:,i) = A(:,:,i)*X(:,i);
end

However, this is very slow, especially in my case where N is large.

Is there a way to do matrix multiplication "along a specified dimension" without a for loop?

Apologies if this is a duplicate question, I looked and could not find anything. Most of the other answers I found involve element-wise multiplication along a specified dimension, which is different than what I am doing.

Answer 1

[Matt J]

B=pagemtimes(A,X)

[Darcy Cordell]

Exactly what I was looking for! The speed up is impressive. I would just add that in order for this to work, it is necessary to permute X to be 2x1xN using permute(X,[1,3,2]). Thanks!

[James Tursa]

Or reshape(X,2,1,[]);