3.5.1.2.7 Angle

1 Description
2 Syntax
3 Parameter
4 Return
5 Example
6 See Also

Description

The angle(x, y) function returns the angle in radians measured between the positive X axis and the line joining the origin (0,0) with the point given by (x, y). The returned values range from 0 to $2pi$ . Note that angle(0, 0) returns a missing value because the result is undefined.

Syntax

double angle(double x, double y)

Parameter

the X-coordinate

the Y-coordinate

Return

Returns the angle in radians measured between the positive X axis and the line joining the origin (0,0) with the point given by (x, y).

Example

angle(1,1)=; //angle(1,1)=0.78539816339745