determinant

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determinant

$\begin{usage} determinant~a\\ determinant!~a \end{usage}$

Signature

determinant: M $\to$ R

$\begin{params} {\em a} & M & A matrix whose determinant has to be computed\\ \end{params}$

$\begin{retval} Returns the determinant of {\em a}. \end{retval}$

$\begin{remarks} determinant!~does not make a copy of $a$, but performs all the computations in--place, modifying the entries of $a$. \end{remarks}$

Manuel Bronstein 2000-12-13