atan2

The four quadrant inverse tangent function.

Syntax

R = atan2(y,x)

Inputs

y
The opposite leg of a triangle.
Type: double
Dimension: scalar | vector | matrix
x
The adjacent leg of a triangle.
Type: double
Dimension: scalar | vector | matrix

Outputs

R
The angle result (in radians).

Examples

Scalar case:
R = atan2(1,-2)
R = 2.67794504
Matrix case:
R = atan2([2,-3;4,-5],[-3,4;5,-6])
R = [Matrix] 2 x 2
2.55359  -0.64350
0.67474  -2.44685