The convert(A, matrix) calling sequence converts any of the following objects into a matrix:

* two-dimensional array

* list of lists

* rtable-based Matrix

Note: The command matrix has been superseded by Matrix.

$A≔\mathrm{array}\left(0..1\,-1..0\,\left[\left[1\,2\right]\,\left[3\,4\right]\right]\right)$

$A≔array\left(0..1\,\mathrm{-1}..0\,\left[\left(0\,\mathrm{-1}\right)=1\,\left(0\,0\right)=2\,\left(1\,\mathrm{-1}\right)=3\,\left(1\,0\right)=4\right]\right)$

$\mathrm{convert}\left(A\,\mathrm{matrix}\right)$

$\left[\begin{array}{cc}1& 2\\ 3& 4\end{array}\right]$

$M≔\mathrm{Matrix}\left(3\,3\,\left[\left[1\,1\,1\right]\,\left[1\,2\,3\right]\,\left[7\,8\,9\right]\right]\right)$

$M≔\left[\begin{array}{ccc}1& 1& 1\\ 1& 2& 3\\ 7& 8& 9\end{array}\right]$

$\mathrm{type}\left(M\,\mathrm{matrix}\right)$

$\mathrm{false}$

$\mathrm{type}\left(M\,\mathrm{Matrix}\right)$

$\mathrm{true}$

$\mathrm{M1}≔\mathrm{convert}\left(M\,\mathrm{matrix}\right)$

$\mathrm{M1}≔\left[\begin{array}{ccc}1& 1& 1\\ 1& 2& 3\\ 7& 8& 9\end{array}\right]$

$\mathrm{type}\left(\mathrm{M1}\,\mathrm{matrix}\right)$

$\mathrm{true}$

$\mathrm{type}\left(M\,\mathrm{Matrix}\right)$

$\mathrm{true}$

$\mathrm{type}\left(\mathrm{M1}\,\mathrm{Matrix}\right)$

$\mathrm{false}$