denominators

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denominators

$\begin{usage} denominators(a,p,r,st) \end{usage}$

Signature

denominators: (M,Z $\to$ Z,Z, PrimitiveArray Z) $\to$ PrimitiveArray R

where
Z == MachineInteger

$\begin{params} {\em a} & M & A matrix in REF form\\ {\em p} & \htmlref{\textt... ...exttt{MachineInteger}}{MachineInteger} & The stairs of the REF\\\end{params}$

$\begin{descr} {\em (a,p,r,st)} must be the representation of a REF computed by... ...the REF. (The $i$-th column is called leading if $i$\ is a stair)\end{descr}$

Manuel Bronstein 2000-12-13