simple-squiggle/node_modules/mathjs/docs/reference/functions/atan.md

Function atan

Calculate the inverse tangent of a value.

For matrices, the function is evaluated element wise.

Syntax

math.atan(x)

Parameters

Parameter	Type	Description
x	number | BigNumber | Complex | Array | Matrix	Function input

Returns

Type	Description
number | BigNumber | Complex | Array | Matrix	The arc tangent of x

Throws

Type	Description

Examples

math.atan(0.5)           // returns number 0.4636476090008061
math.atan(math.tan(1.5)) // returns number 1.5

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

See also

tan, asin, acos