Tabla del -90
| -90 | X | 1 | = | -90 |
| -90 | X | 2 | = | -180 |
| -90 | X | 3 | = | -270 |
| -90 | X | 4 | = | -360 |
| -90 | X | 5 | = | -450 |
| -90 | X | 6 | = | -540 |
| -90 | X | 7 | = | -630 |
| -90 | X | 8 | = | -720 |
| -90 | X | 9 | = | -810 |
| -90 | X | 10 | = | -900 |
| -90 | X | 1 | = | -90 |
| -90 | X | 2 | = | -180 |
| -90 | X | 3 | = | -270 |
| -90 | X | 4 | = | -360 |
| -90 | X | 5 | = | -450 |
| -90 | X | 6 | = | -540 |
| -90 | X | 7 | = | -630 |
| -90 | X | 8 | = | -720 |
| -90 | X | 9 | = | -810 |
| -90 | X | 10 | = | -900 |