# Cylindrical Transposition

### Information

Cylindrical Transposition is used to switch between positive and negative cylindrical forms and vice-versa

To calculate, sum the Sphere and Cylinder. $$Sphere + Cylinder$$

Change the sign of the Cylinder. $$Cylinder \times -1$$

Change Axis by 90 degrees

. $$0 \leq Axis \leq 90: Axis + 90$$ $$90 < Axis < 180: 180 - Axis$$ $$Axis = 180: 90$$