1.0 KiB
1.0 KiB
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