ne(!=)

X != Y

or

X <> Y

X and 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.

If neither X nor Y is a set, conduct the element-by-element comparison of X and Y; return 1 if the elements in X and Y are not the same.

If X and Y are sets, check if X and Y are not identical.

1 2 3 != 2;
// output
[1,0,1]

1 2 3 ne 0 2 4;
// output
[1,0,1]

1:2 != 1:6;
// output
0 : 1

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

t = table(`A`B`M`B`A`M as sym, 10.1 11.2 11.3 12 10.6 10.8 as val)
select * from t where nullIf(sym, `M)<>NULL

// output
sym   val
A     10.1
B     11.2
B     12
A     10.6

m1 != 4;

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

m1 ne m2;

Set operation: If X!=Y then X and Y are not identical

x=set(4 6);
y=set(4 6 8);

x!=y;
// output
1
x!=x;
// output
0