Created
October 19, 2017 20:10
-
-
Save lamvann/d1163c736b44b54e86e692afe6dbf711 to your computer and use it in GitHub Desktop.
Some useful utilities to do linear algebra in J.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| dot =. (+/ . *) | |
| ma =.%: @: (+/ @: *:) | |
| ca =. (([:-/ @: *: (ma x) , ([:ma [-]) , ma y ) % (2: * (ma x) * (ma y))) |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment