The type(expr, sequential) calling sequence returns true if expr is any one of the following types of Maple objects.

The type(expr, sequential(K)) calling sequence returns true if expr is of type sequential and type(x, K) is true for each element x in expr.

The type(expr, sequential(K)) calling sequence returns true if expr is of type sequential and type(x, K) is true for each element x in expr.

An expression sequence is also of type sequential. Please note that type((1,2),sequential) will return an error, since it simplifies to type(1,2,sequential) and checks that 1 is of type 2. However, evalb((1,2)::sequential) returns true.

type/indexable

type/list, type/set

A := [[1,2,3],[1,1,1],[5,7,9]];

$A≔\left[\left[1\,2\,3\right]\,\left[1\,1\,1\right]\,\left[5\,7\,9\right]\right]$

type(A, sequential);

$\mathrm{true}$

S := {-1, 1/2, 1.0, "hello"};

$S≔\left\{\mathrm{-1}\,\frac{1}{2}\,1.0\,''hello''\right\}$

type(S, sequential(literal));

$\mathrm{true}$