diagonal

Next: dimensions Up: MatrixCategory Previous: companion Contents Index

diagonal

$\begin{usage} diagonal~[$r_1,\dots,r_n$]\\ diagonal?~A \end{usage}$

$\begin{signatures} diagonal: & \htmlref{\texttt{Vector}}{Vector} R $\to$\ \%\\ diagonal?: & \% $\to$\ \htmlref{\texttt{Boolean}}{Boolean}\\\end{signatures}$

$\begin{params} $r_1,\dots,r_n$\ & R & Entries\\ {\em A} & \% & A matrix\\\end{params}$

$\begin{descr} diagonal([$r_1,\dots,r_n$]) returns a diagonal matrix whose diago... ...pace if {\em A} is a diagonal matrix, {\it false}\xspace otherwise. \end{descr}$

See Also

companion,one?,square?

Manuel Bronstein 2000-12-13