7.2 The Transcendentals module
atan2
G.f. method
Summary
Returns the arc tangent of one angle divided by another.
Signature
atan2 x y => z
Arguments
- x
- An instance of type
<real>. The first angle, in radians. - y
- An instance of type
<real>. The second angle, in radians.
Values
- z
- An instance of type
<float>.
Library
common-extensions
Module
transcendentals
Description
Returns the arc tangent of x divided by y. x may be zero if y is not zero. The signs of x and y are used to derive what quadrant the angle falls in.
The floating point precision of the result is given by the precision of x/y. The result is a single-float if x/y is an integer.