angle_sc::trig

Function sincos_diff

Source 
pub fn sincos_diff(a: Radians, b: Radians) -> (UnitNegRange, UnitNegRange)
Expand description

Calculate the sine and cosine of an angle from the difference of a pair of values in Radians.

Note: calculates the cosine of the angle from its sine and overrides the sine and cosine for π/4 to their correct values: 1/√2

  • a, b the angles in Radians

returns sine and cosine of a - b as UnitNegRanges.