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

Function re

Get the real part of a complex number. For a complex number a + bi, the function returns a.

For matrices, the function is evaluated element wise.

Syntax

math.re(x)

Parameters

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

Returns

Type	Description
number | BigNumber | Array | Matrix	The real part of x

Throws

Type	Description

Examples

const a = math.complex(2, 3)
math.re(a)                     // returns number 2
math.im(a)                     // returns number 3

math.re(math.complex('-5.2i')) // returns number 0
math.re(math.complex(2.4))     // returns number 2.4

See also

im, conj, abs, arg