Hello
I am using Maple 15 on a Macbook Pro, and I was using this simple code
restart;with(LinearAlgebra):
P := Matrix(4, 4, [[1, s, t, 0], [0, 1, s, 0], [0, 0, 1, s], [0, 0, 0, s]]);
DiagonalMatrix(Column(P, 2)).P;
which should be easy but then Maple gives me a pop-up message:
"Kernel connection has been lost. The kernel returned the following error message: