1 program sub_rab2;
2 uses mtx09;
3 var r, a, b: mtx;
4 begin
5 tra; // trace on
6 equ(a,'1,2,3;4,5,6');
7 equ(b,'0,2,1');
8 sub(r,a,b);
9 sub(r,b,a)
10 end.
11 {
12 # equ [2,3]
13 1 2 3
14 4 5 6
15
16 # equ [1,3]
17 0 2 1
18
19 # sub [2,3] [2,3] [1,3]
20 1 0 2
21 4 3 5
22
23 # sub [2,3] [1,3] [2,3]
24 -1 0 -2
25 -4 -3 -5
26
27 }