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

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

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