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Normal Matrix

A normal matrix ${\hbox{\sf A}}$ is a Matrix for which

\begin{displaymath}[{\hbox{\sf A}},{\hbox{\sf A}}^\dagger]= 0,
\end{displaymath}

where $[a,b]$ is the Commutator and ${}^\dagger$ denotes the Adjoint Operator.




© 1996-9 Eric W. Weisstein
1999-05-25