1) I have declared:

Mtrx(20,20) as Integer, where i have a Matrix

1 2 3
1 2 3

How can I do an inverse of this matrix using only VBA commands?


2) I have :
Mtrx(20,20) as Integer, for example :

3 1
2 0

and Mtrx1(20,20) as Integer :
1 2 0
0 1 1

How to multiply these matrices using only VBA ?

Thanks a lot for your help