lt

Syntax

lt(X, Y) or X<Y

Arguments

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

Details

If neither X nor Y is a set, return the element-by-element comparison of X*<*Y.

If both X and Y are sets, check if X is a proper subset of Y.

Examples

$ 1 2 3 < 2;
[1,0,0]

$ 1 2 3<0 2 4;
[0,0,1]

$ 2:3<1:6;
0 : 1

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

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

$ m1 lt 4;

#0	#1	#2
1	1	0
1	0	0

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

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

$ m1<m2;

#0	#1	#2
1	1	0
1	0	0

Set operation: If X<Y then X is a proper subset of Y

$ x=set(4 6);
$ x;
set(6,4)
$ y=set(8 9 4 6);
$ y;
set(6,4,9,8)

$ x<y;
1

$ y<x;
0

$ x<x;
0
// x is not a proper subset of x