mathjs/docs/reference/functions/conj.md

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§Function conj

Compute the complex conjugate of a complex value. If x = a+bi, the complex conjugate of x is a - bi.

For matrices, the function is evaluated element wise.

§Syntax

math.conj(x)

§Parameters

Parameter	Type	Description
x	Number | BigNumber | Complex | Array | Matrix | Boolean	A complex number or array with complex numbers

§Returns

Type	Description
Number | BigNumber | Complex | Array | Matrix	The complex conjugate of x

§Examples

math.conj(math.complex('2 + 3i'));  // returns Complex 2 - 3i
math.conj(math.complex('2 - 3i'));  // returns Complex 2 + 3i
math.conj(math.complex('-5.2i'));  // returns Complex 5.2i

§See also

re, im, arg, abs