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2024-02-14 20:59:32 +00:00
1 parent a35662637b
commit 7dedef5665
@@ -21,6 +21,7 @@
 \newcommand{\abs}[1]{\left|#1\right|}
 \newcommand{\polar}[2]{#1\paren{\cos{\paren{#2}} + i\sin{\paren{#2}}}}
 \newcommand{\adj}[1]{\operatorname{adj}#1}
+\newcommand{\card}[1]{\left|#1\right|}

 \makeatletter
 \renewcommand*\env@matrix[1][*\c@MaxMatrixCols c]{%