Need help - How can diagonales matrix M*M

[prbailek]

heep

How can diagonales matrix M*M
1 1 1 1 1 2 2 2 2 ......
1 2 3 5 6 5 6 ...........
.............................
.............................
3 5 6 ....................
...........................

 

[htg]

You need to clearly specify your matrix M, and say if you want to diagonalyze M or its product by itself M*M.