Advanced Search

Question: slices of Matrix confusion

Question:slices of Matrix confusion

nm 8552 Maple 2020
matrix indexing
February 20 2021
3

 

Why is a row of a matrix has type Matrix, but a column of a Matrix has type Vector (column vector)

I expected a row of a matrix to also be a Vector (row vector).

restart;
A:=Matrix([[1,2],[3,4]]);
A(1,..);
whattype(%);

A(..,1);
whattype(%);

This might be by design or documented somewhere. But I find it not consistent.  Either both results should be Matrices, or both should be Vectors (the more logical way).

 

Maple 2020.2 on windows 10.
Please Wait...