Find the angle of a segment from (x1, y1) -> (x2, y2).
name | type | description |
---|---|---|
x1 | number |
The x coordinate of the first point. |
y1 | number |
The y coordinate of the first point. |
x2 | number |
The x coordinate of the second point. |
y2 | number |
The y coordinate of the second point. |
The angle in radians.