The rtable_split_unit(A) function, where A is an Array, Matrix, or Vector, returns substructures pertaining to the Units indexing function property of A.  If A is an rtable that does not have a Units indexing function, then NULL is returned.

In the case that A is an Array, this is equivalent to op(1, A).

You can also use MatrixOptions or VectorOptions with the shape parameter to obtain the indexing functions (shape) for Matrices and Vectors, respectively.

$M≔\mathrm{Vector}\left(2\,i\mapsto i\cdot \mathrm{Unit}\left(m\right)\,\mathrm{shape}=\mathrm{Unit}\left(m\right)\right)$

$M≔\left[\begin{array}{c}⟦m⟧\\ 2⟦m⟧\end{array}\right]$

$\mathrm{rtable\_split\_unit}\left(M\right)$

$\left[⟦m⟧\,\left[\begin{array}{c}1\\ 2\end{array}\right]\right]$

$M\left[2\right]≔3\mathrm{Unit}\left(s\right)$

$M_2≔3⟦s⟧$

$\mathrm{rtable\_split\_unit}\left(M\right)$

$\left[\left[\begin{array}{c}⟦m⟧\\ ⟦s⟧\end{array}\right]\,\left[\begin{array}{c}1\\ 3\end{array}\right]\right]$

The rtable_split_unit command was introduced in Maple 2024.

For more information on Maple 2024 changes, see Updates in Maple 2024.