On Sun, Jun 5, 2016 at 6:41 PM, Stephan Hoyer <sho...@gmail.com> wrote:
> If possible, I'd love to add new functions for "generalized ufunc" linear > algebra, and then deprecate (or at least discourage) using the older > versions with inferior broadcasting rules. Adding a new keyword arg means > we'll be stuck with an awkward API for a long time to come. > > There are three types of matrix/vector products for which ufuncs would be > nice: > 1. matrix-matrix product (covered by matmul) > 2. matrix-vector product > 3. vector-vector (inner) product > > It's straightful to implement either of the later two options by inserting > dummy dimensions and then calling matmul, but that's a pretty awkward API, > especially for inner products. Unfortunately, we already use the two most > obvious one word names for vector inner products (inner and dot). But on > the other hand, one word names are not very descriptive, and the short name > "dot" probably mostly exists because of the lack of an infix operator. > > So I'll start by throwing out some potential new names: > > For matrix-vector products: > matvecmul (if it's worth making a new operator) > > For inner products: > vecmul (similar to matmul, but probably too ambiguous) > dot_product > inner_prod > inner_product > I was using mulmatvec, mulvecmat, mulvecvec back when I was looking at this. I suppose the mul could also go in the middle, or maybe change it to x and put it in the middle: matxvec, vecxmat, vecxvec. Chuck
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