mtimes edit page

implements e * c and c * e

## Description

If e is a matrix of embeddings and c is a matrix of coefficients then e * c is again a matrix of embeddings defined by

$[\mathrm{e * c}]_{j\ell} = \sum_{k} \mathrm{e}_{jk} \mathrm{c}_{k \ell}$

## Input

 e embedding c double

## Output

 out embedding