[Numpy-discussion] add elementwise addition & subtraction to einsum

Hello, This is a follow on for issue 8139 . I propose adding elementwise addition and subtraction functionality to einsum. I love einsum as it clearly and concisely defines complex linear algebra. However elementwise addition is a very common linear

Re: [Numpy-discussion] how to name "contagious" keyword in np.ma.convolve

> On 16 Oct 2016, at 03:21, Allan Haldane wrote: > >> On 10/14/2016 07:49 PM, Juan Nunez-Iglesias wrote: >> +1 for propagate_mask. That is the only proposal that immediately makes >> sense to me. "contagious" may be cute but I think approximately 0% of >> users would