I've seen a symbol consisting of two arrows crossing each other in computer visualistics-book. They are orthogonal to each other and one is pointing top-down (from north to south) and the other one is pointing from left to right (or from west to east).
Does anybody know how to achieve that?
Looked into large symbol collections and did not find it.
What I've found is
\towa from the stix package, but this one would require a rotation by 135 degrees and it looked awful then (using a rotatebox).