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

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

var a = complex(2, 3);
re(a);                     // returns number 2
im(a);                     // returns number 3

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

See also

im, conj, abs, arg