Module atan2 

Implementations of Atan2 and Atan2Assign, traits for computing the angle of a point given by two Float coordinates.

Functions

primitive_float_atan2

Computes $\operatorname{atan2}(y,x)$, the angle of the point $(x,y)$ measured from the positive $x$-axis, for primitive floats.

primitive_float_atan2_pi

Computes $\operatorname{atan2}(y,x)/\pi$, the angle of the point $(x,y)$ measured from the positive $x$-axis in half-turns, for primitive floats.

primitive_float_atan2_pi_rational

Computes $\operatorname{atan2}(y,x)/\pi$, the angle of the point $(x,y)$ measured from the positive $x$-axis in half-turns, for Rationals, returning the result as a primitive float.

primitive_float_atan2_rational

Computes $\operatorname{atan2}(y,x)$, the angle of the point $(x,y)$ measured from the positive $x$-axis, for Rationals, returning the result as a primitive float.

primitive_float_atan2_with_period

Computes $\operatorname{atan2}(y,x)u/(2\pi)$, the angle of the point $(x,y)$ measured from the positive $x$-axis in $u$ths of a turn (so that u = 360 gives degrees), for primitive floats.

primitive_float_atan2_with_period_rational

Computes $\operatorname{atan2}(y,x)u/(2\pi)$, the angle of the point $(x,y)$ measured from the positive $x$-axis in $u$ths of a turn (so that u = 360 gives degrees), for Rationals, returning the result as a primitive float.