Mon Feb 24 07:57:57 2020 

lumatrix_test
  R version 3.4.4 (2018-03-15) 
  lumatrix(A) computes the Lower-Upper (LU) factorization of a matrix.


The matrix A:

     [,1] [,2] [,3]
[1,]    0    1   -2
[2,]    1    5    9
[3,]    7   -1   -5

The P factor of A:

     [,1] [,2] [,3]
[1,]    0    1    0
[2,]    1    0    0
[3,]    0    0    1

The L factor of A:

     [,1] [,2] [,3]
[1,]    1    0    0
[2,]    0    1    0
[3,]    7  -36    1

The U factor of A:

     [,1] [,2] [,3]
[1,]    1    5    9
[2,]    0    1   -2
[3,]    0    0 -140

The product P*L*U:

     [,1] [,2] [,3]
[1,]    0    1   -2
[2,]    1    5    9
[3,]    7   -1   -5

lumatrix_test
  Normal end of execution.
Mon Feb 24 07:57:57 2020