matrix.lib
LIB "matrix.lib"; ring r=32003,(x,y,z),lp; matrix A[3][3]=1,2,3,4,5,6,7,8,9; print(A); ==> 1,2,3, ==> 4,5,6, ==> 7,8,9 print(addcol(A,1,xy,2)); ==> 1,xy+2, 3, ==> 4,4xy+5,6, ==> 7,7xy+8,9