Function fmod

Computes x mod y (x - k * y)

Example

Interval.fmod(
  Interval(5.3, 5.3),
  Interval(2, 2)
) // Interval(1.3, 1.3)
Interval.fmod(
  Interval(5, 7),
  Interval(2, 3)
) // Interval(2, 5)
// explanation: [5, 7] - [2, 3] * 1 = [2, 5]

Returns