This error message indicates that the exponentiation operation is not defined for Vectors, for example,  will produce an error. As such, when attempting division such as ,  Maple does not compute   but instead tries to compute . In trying to raise B to the exponent -1, this produces an error.

In the following example, it is not clear whether element-wise division or the creation of a matrix is intended.

Solution:
To apply an operation, you must use the Zip or LinearAlgebra[Zip] commands.

For more information on the key data structures in Maple, see the User Manual, Chapter 8 and the help pages for expression sequences, sets, lists, tables, Arrays, Matrices, Vectors, functional operators, and strings.

Arrays, expand, expression sequences, functional operators, LinearAlgebra[Zip], lists, Matrices, sets, strings, tables, User Manual, Chapter 8, Vectors, zip