The command dimensions computes the size of a matrix. This command is equivalent to the Matlab[size] command.

Use dimensions for computing dimensions of Maple variables, and Matlab[size] for computing the dimensions of MATLAB® variables.

If X is a string, then the size is computed using MATLAB®.

Executing the dimensions command returns an integer list with n elements for an n-dimensional object. For example, a 3x4 matrix is two-dimensional, therefore a list with two elements is returned. Each element corresponds to the size of that dimension. For the 3x4 matrix, the returned list is [3, 4].

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

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

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

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

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

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

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

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

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

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

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