The type(expr, indexable) calling sequence returns true if expr is of type sequential, type string, or type tabular. This includes any one of the following types of indexable Maple objects.

The type(expr, 'indexable'(R)) calling sequence returns true if expr is a indexable Maple object containing elements of type R.

$A≔\mathrm{rtable}\left(\left[\left[1\,2\,3\right]\,\left[1\,1\,1\right]\,\left[5\,7\,9\right]\right]\,\mathrm{subtype}=\mathrm{Matrix}\,\mathrm{datatype}=\mathrm{integer}\left[2\right]\right)$

$A≔\left[\begin{array}{ccc}1& 2& 3\\ 1& 1& 1\\ 5& 7& 9\end{array}\right]$

$\mathrm{type}\left(A\,\mathrm{indexable}\right)$

$\mathrm{true}$

$\mathrm{type}\left(A\,'\mathrm{indexable}'\left(\mathrm{integer}\left[2\right]\right)\right)$

$\mathrm{true}$