# Arithmetic Course/Non Linear Function/Circular Function

## Circular FunctionEdit

### Real NumberEdit

When x = 0

When y = 0

Further, when

- a = b . The function above is a Circular Function
- a > b . The function above is a Elliptical Function
- a < b . The function above is a Elliptical Function

### Complex NumberEdit

When x = 0

When y = 0

The function above is a Circular Function in a Complex number