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rank


\begin{usage} rank~a\\ rank!~a \end{usage}


Signature


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

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

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


See Also


Manuel Bronstein 2000-12-13