X-Git-Url: http://gitweb.michael.orlitzky.com/?p=mjotex.git;a=blobdiff_plain;f=mjo-linear_algebra.tex;h=b077288f972598438c103427d082f14217a60d8f;hp=b2ad59cd905119522685a2cca666d2718d3f98e7;hb=af7e58d88448fa6726d8e6df22b280390e0a5a34;hpb=05d580bd8940274b3d3a87a364ba649dff2cf53d

diff --git a/mjo-linear_algebra.tex b/mjo-linear_algebra.tex
index b2ad59c..b077288 100644
--- a/mjo-linear_algebra.tex
+++ b/mjo-linear_algebra.tex
@@ -2,6 +2,9 @@
 % Standard operations from linear algebra.
 %
 
+% Needed for \operatorname.
+\usepackage{amsopn}
+
 \input{mjo-common}
 
 % The inner product between its two arguments.