rowadd(a, i, j)
Adds the i-th row to the j-th row of matrix a.
See also rowtimes submatrix
Example
a = ( 1, 2, 3 ; 4, 5, 6 ; 7, 8, 9 )
1 2 3
4 5 6
7 8 9
rowadd( a, 1, 2 )
5 7 9