| LIB "arr.lib";
ring R = 0,(x,y,z),dp;
arr A = mat2arr(random(20,5,4));
A;
==> _[1]=10x+y-2z-12
==> _[2]=2x-16z-14
==> _[3]=11y+16z-5
==> _[4]=-16x-18y-5z+11
==> _[5]=3x+8y+6
==>
arrPrintMatrix(A);
==> 10x, y, -2z, -12,
==> 2x, 0, -16z,-14,
==> 0, 11y, 16z, -5,
==> -16x,-18y,-5z, 11,
==> 3x, 8y, 0, 6
|