Important: The linalg package has been deprecated. Use the superseding command LinearAlgebra[Equal], instead.

- For information on migrating linalg code to the new packages, see examples/LinearAlgebraMigration.

The procedure equal returns true if matrices A and B are of the same shape and corresponding entries are equal, false or an error otherwise.

The command with(linalg,equal) allows the use of the abbreviated form of this command.

$\mathrm{with}\left(\mathrm{linalg}\right)\:$

$A≔\mathrm{array}\left(\left[\left[2\,1\right]\,\left[1\,2\right]\right]\right)$

$A≔\left[\begin{array}{cc}2& 1\\ 1& 2\end{array}\right]$

$B≔\mathrm{array}\left(\left[2\,1\,1\,2\right]\right)$

$B≔\left[\begin{array}{cccc}2& 1& 1& 2\end{array}\right]$

$\mathrm{equal}\left(A\,B\right)$

Error, (in linalg:-equal) arguments must be both matrices or both vectors

$C≔\mathrm{matrix}\left(2\,2\,\left[2\,1\,1\,2\right]\right)$

$C≔\left[\begin{array}{cc}2& 1\\ 1& 2\end{array}\right]$

$\mathrm{equal}\left(A\,C\right)$

$\mathrm{true}$

$F≔\mathrm{array}\left(\left[\left[2\,1\right]\,\left[2\,1\right]\right]\right)$

$F≔\left[\begin{array}{cc}2& 1\\ 2& 1\end{array}\right]$

$\mathrm{equal}\left(A\,F\right)$

$\mathrm{false}$