1 program sub_ab;
2 uses mtx09;
3 var a, b: mtx;
4 begin
5 tra;
6 equ(a,'10;20');
7 equ(b,'1 2 3; 4 5 6');
8 sub(a,b);
9 sub(b,a)
10 end.
11 {
12 # equ [2,1]
13 10
14 20
15
16 # equ [2,3]
17 1 2 3
18 4 5 6
19
20 # sub [2,1] [2,3]
21 4
22 5
23
24 # sub [2,3] [2,1]
25 -3 -2 -1
26 -1 0 1
27
28 }