Function atan2
Calculate the inverse tangent function with two arguments, y/x. By providing two arguments, the right quadrant of the computed angle can be determined.
For matrices, the function is evaluated element wise.
Syntax
atan2(y, x)
Parameters
Parameter | Type | Description |
---|---|---|
y |
number | Array | Matrix | Second dimension |
x |
number | Array | Matrix | First dimension |
Returns
Type | Description |
---|---|
number | Array | Matrix | Four-quadrant inverse tangent |
Examples
atan2(2, 2) / pi; // returns number 0.25
var angle = unit(60, 'deg'); // returns Unit 60 deg
var x = cos(angle);
var y = sin(angle);
atan(2); // returns Complex 1.5707963267948966 -1.3169578969248166 i