trigonometry Namespace Reference

An arc tangent which considers the signs of both x and y, mimicking the behaviour of function atan2. More...

Functions
def	atan2d (y, x)
	Computes the arc tangent (measured in degrees) of y/x. More...
def	main ()

Detailed Description

An arc tangent which considers the signs of both x and y, mimicking the behaviour of function atan2.

Author

Paulo Roma

Since

Function Documentation

atan2d()

def trigonometry.atan2d	(		y,
			x
	)

Computes the arc tangent (measured in degrees) of y/x.

Unlike atan(y/x), the signs of both x and y are considered.

The two-argument atan2 function computes the arctangent of \(\frac{y}{x}\) given y and x, but with a range of \((-\pi, \pi]\). In other words, atan2(y, x) is the angle between the positive x-axis of a plane and the point (x, y) on it, with positive sign for counter-clockwise angles (upper half-plane, y > 0), and negative sign for clockwise angles (lower half-plane, y < 0).

Parameters

y	y coordinate.
x	x coordinate.

Returns

atan2(y,x) in degrees.

Referenced by main().

main()

def trigonometry.main

(

)

References atan2d(), and _01d_dec2bin.input.