Module angle_sc::trig

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

Structs

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

Functions

• calculate_adjacent_length
  Calculates the length of the other side in a right angled triangle, given the length of one side and the hypotenuse.
  See: Pythagorean theorem
• 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.
• spherical_adjacent_length
  Calculates the length of the other side in a right angled spherical triangle, given the length of one side and the hypotenuse.
  See: Spherical law of cosines
• spherical_cosine_rule
  Calculate the length of the adjacent side of a right angled spherical triangle, given the cosine of the angle and length of the hypotenuse.
  See: Spherical law of cosines
• spherical_hypotenuse_length
  Calculates the length of the hypotenuse in a right angled spherical triangle, given the length of both sides.
  See: Spherical law of cosines
• 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