BINARY OPERATOR: &<>
SYNOPSIS:
EXAMPLES:
> with(tubular):
> read_in(3,3,4);
> x := [-3,0,2,-4]; y := [0,0,2,-5]; z := [0,1,1,3];
> x &<> y;
> x &<> z;
SEE ALSO: tubular/Lp, NF, &<, &>, &<=, &>=