| Answer | Crossword Clue |
|---|---|
| SCALAR | Having no direction, in math |
| SCALAR | Having magnitude, but no direction |
| SCALAR | Having magnitude but no direction |
| SCALAR | Having only magnitude, but no direction |
| FLIPFLOPSIDES | Backs of 45's having a sudden change in direction? |
| NULLSET | Group with no members, in math |
| NULLSET | It has no members, in math |
