sub

Syntax

sub(X, Y) or X-Y

Arguments

X/Y is a scalar/pair/vector/matrix/set. If one of X and Y is a pair/vector/matrix, the other is a scalar or a pair/vector/matrix of the same size.

Details

Return the result of element-by-element subtracting Y from X. If both X and Y are sets, sub returns a set by eliminating the common elements of X and Y from X.

Examples

$ 4:5-2;
2 : 3

$ 4:5-1:2;
3 : 3

$ x=1 2 3;
$ x-1;
[0,1,2]

$ 1 sub x;
[0,-1,-2]

$ y=4 5 6;
$ sub(x,y);
[-3,-3,-3]

$ m1=1..6$2:3;
$ m1;

#0	#1	#2
1	3	5
2	4	6

$ m-2;

#0	#1	#2
-1	1	3
0	2	4

$ m2=6..1$2:3;
$ m2;

#0	#1	#2
6	4	2
5	3	1

$ m1-m2;

#0	#1	#2
-5	-1	3
-3	1	5

$ x=set([5,3,4]);
$ y=set(8 9 4 6);
$ x-y;
set(3,5)

$ y-x;
set(6,9,8)