Import Upstream version 3a5upstream/3a5

1 files changed, 18 insertions, 0 deletions

diff --git a/determ.txi b/determ.txi
index 1d89164..51ec1c9 100644
--- a/determ.txi
+++ b/determ.txi
@@ -38,9 +38,27 @@ element.
 @end defun
 
 
+@defun matrix:sum m1 m2
+
+Returns the element-wise sum of matricies @var{m1} and @var{m2}.
+@end defun
+
+
+@defun matrix:difference m1 m2
+
+Returns the element-wise difference of matricies @var{m1} and @var{m2}.
+@end defun
+
+
 @defun matrix:product m1 m2
 
 Returns the product of matrices @var{m1} and @var{m2}.
+
+@defunx matrix:product m1 z
+Returns matrix @var{m1} times scalar @var{z}.
+
+@defunx matrix:product z m1
+Returns matrix @var{m1} times scalar @var{z}.
 @end defun