[Jama] Jama matrix documentation

[Saswati Bhattacharjee]

I am using Jama matrix for my project work. I want to know that how to
clear the content of a matrix and how to perform pseudo inverse in matrix
operation.
clear the content of the matrix meaning
Input Matrix:

1 2 3
4 5 6
7 8 9

output matrix
0 0 0
0 0 0
0 0 0

Thank you
Your faithfully,
Saswati Bhattacharjee