astropy/astropy — pull request #3191 by mhvk (2014-12-10 15:20:14+00:00)
Title: Rewrite Unit.__rmul__ and __rdiv__ to speed up array [*/] unit

This partially addresses #3174, by making ` * ` faster by a factor 2.5. See https://github.com/astropy/astropy/issues/3174#issuecomment-65345656