sub(-)
Syntax
X - Y
Arguments
X and 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)