this is for holding javascript data
Benedict Irwin edited untitled.tex
over 9 years ago
Commit id: 62bb54801add42f22e1707804ca5f8d7672fd44c
deletions | additions
diff --git a/untitled.tex b/untitled.tex
index 29b50cb..1db3fa8 100644
--- a/untitled.tex
+++ b/untitled.tex
...
\end{equation}
This likely works because for any 2x2 matrix
$|A|=-|AJ|=-|JA|=|JAJ|$. $|A|=-|AJ_2|=-|J_2A|=|J_2AJ_2|$.
Extrapolating backwards for a two by two matrix we get the correct formula on the proviso we definfe $J_1\equiv-1$. This makes some sense, as for any $J_nJ_n=I$ and $J_nJ_nA=A$.