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;
// output
2 : 3

4:5-1:2;
// output
3 : 3

x=1 2 3;
x-1;
// output
[0,1,2]

1 sub x;
// output
[0,-1,-2]

y=4 5 6;
sub(x,y);
// output
[-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;
// output
set(3,5)

y-x;
// output
set(6,9,8)