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 #

math.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 #

math.atan2(2, 2) / math.pi       // returns number 0.25

const angle = math.unit(60, 'deg') // returns Unit 60 deg
const x = math.cos(angle)
const y = math.sin(angle)

math.atan(2)             // returns Complex 1.5707963267948966 -1.3169578969248166 i

See also #

tan, atan, sin, cos

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