Function angleTo

angleTo(a: readonly [number, number], b: readonly [number, number]): number
Returns the smallest angle (in radians) between two polar directions, ignoring r. Range [0, pi].
Parameters
- a: readonly [number, number]
  the first Polar
- b: readonly [number, number]
  the second Polar
Returns number
angle in radians in [0, pi]
- Defined in core/polar.ts:178