[Numpy-discussion] Re: New matvec and vecmat functions

Why do these belong in NumPy? What is the broad field of application of these functions? And, does a more general concept underpin them?

Multiplication of a matrix with a vector is about as common as matrix with matrix or vector with vector, and not currently easy to do for stacks of vectors, so I think the case for matvec is similarly strong as that for matmul and vecdot. Arguably, vecmat is slightly less common, though completes the quad. -- Marten