Module angle_sc::trig

The trig module contains the UnitNegRange newtype struct and trigonometric functions which use it.

Structs

• UnitNegRange
  The UnitNegRange newtype an f64.
  A valid UnitNegRange value lies between -1.0 and +1.0 inclusive.

Functions

• cosine_diff
  Calculate the cosine of the difference of two angles: a - b.
  See: angle sum and difference identities.
• cosine_from_sine
  Calculate the cosine of an Angle from it’s sine and the sign of the cosine.
  See: swap_sin_cos.
• cosine_sum
  Calculate the cosine of the sum of two angles: a + b.
  See: angle sum and difference identities.
• sine_diff
  Calculate the sine of the difference of two angles: a - b.
  See: angle sum and difference identities.
• sine_sum
  Calculate the sine of the sum of two angles: a + b.
  See: angle sum and difference identities.
• sq_cosine_half
  Square of the cosine of half the Angle.
  See: Half-angle formulae
• sq_sine_half
  Square of the sine of half the Angle.
  See: Half-angle formulae
• swap_sin_cos
  Swap the sine into the cosine of an Angle and vice versa.
  Uses the identity sin² + cos² = 1. See: Pythagorean identities