The square command returns a value of 'true' if X is a square matrix.  All constants are considered to be one-by-one square matrices.

A cubic matrix is not square.  A square matrix can have at most two dimensions.

Executing the square command returns a value of either 'true' or 'false'.

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

$\mathrm{maplematrix\_a}≔\mathrm{Matrix}\left(\left[\left[1\,2\,3\right]\,\left[3\,4\,5\right]\right]\right)$

$\mathrm{maplematrix\_a}≔\left[\begin{array}{ccc}1& 2& 3\\ 3& 4& 5\end{array}\right]$

$\mathrm{maplematrix\_b}≔\mathrm{Matrix}\left(\left[\left[8\,7\right]\,\left[6\,3\right]\,\left[2\,1\right]\right]\right)$

$\mathrm{maplematrix\_b}≔\left[\begin{array}{cc}8& 7\\ 6& 3\\ 2& 1\end{array}\right]$

$\mathrm{Matlab}\left[\mathrm{square}\right]\left(\mathrm{maplematrix\_a}\right)$

$\mathrm{Matlab}\left[\mathrm{square}\right]\left(\mathrm{maplematrix\_b}\right)$

$\mathrm{setvar}\left(''matlabmatrix\_a''\,\mathrm{maplematrix\_a}\right)$

$\mathrm{setvar}\left(''matlabmatrix\_b''\,\mathrm{maplematrix\_b}\right)$

$\mathrm{Matlab}\left[\mathrm{evalM}\right]\left(''matlabmatrix\_c=matlabmatrix\_a*matlabmatrix\_b''\right)$

$\mathrm{Matlab}\left[\mathrm{square}\right]\left(''matlabmatrix\_c''\right)$