Module atan 

Implementations of Atan and AtanAssign, traits for computing the arctangent of Floats.

Functions

primitive_float_atan

Computes $\arctan x$, the arctangent of a primitive float. Using this function is more accurate than using the default atan function or the one provided by libm.

primitive_float_atan_pi

Computes $\arctan(x)/\pi$, the arctangent of a primitive float measured in half-turns.

primitive_float_atan_pi_rational

Computes $\arctan(x)/\pi$, the arctangent of a Rational measured in half-turns, returning the result as a primitive float.

primitive_float_atan_rational

Computes $\arctan x$, the arctangent of a Rational, returning the result as a primitive float.

primitive_float_atan_with_period

Computes $\arctan(x)u/(2\pi)$, the arctangent of a primitive float measured in $u$ths of a turn (so that u = 360 gives degrees).

primitive_float_atan_with_period_rational

Computes $\arctan(x)u/(2\pi)$, the arctangent of a Rational measured in $u$ths of a turn (so that u = 360 gives degrees), returning the result as a primitive float.