The rtable_dims(A) function, where A is an Array, Matrix, or Vector, returns a sequence of integer ranges representing the bounds of each dimension of rtable A.

For a 0-dimensional rtable, NULL is returned. In the case that A is an Array, this is equivalent to op(2, A).

For Matrices and Vectors, this function is similar to LinearAlgebra[Dimension].

The rtable_num_dims(A) function, where A is an Array, Matrix, or Vector, returns the number of dimensions of rtable A.

This is equivalent to nops([rtable_dims(A)]).

The rtable_num_dims command is thread-safe as of Maple 15.

For more information on thread safety, see index/threadsafe.

$M≔\mathrm{Matrix}\left(\left[\left[1\,2\,3\right]\,\left[4\,5\,6\right]\right]\right)$

$M≔\left[\begin{array}{ccc}1& 2& 3\\ 4& 5& 6\end{array}\right]$

$\mathrm{rtable\_dims}\left(M\right)$

$1..2,1..3$

$\mathrm{rtable\_num\_dims}\left(M\right)$

$2$