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<h1 id="function-conj">Function conj <a href="#function-conj" title="Permalink">#</a></h1>

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.


<h2 id="syntax">Syntax <a href="#syntax" title="Permalink">#</a></h2>

```js
math.conj(x)
```

<h3 id="parameters">Parameters <a href="#parameters" title="Permalink">#</a></h3>

Parameter | Type | Description
--------- | ---- | -----------
`x` | number &#124; BigNumber &#124; Complex &#124; Array &#124; Matrix |  A complex number or array with complex numbers

<h3 id="returns">Returns <a href="#returns" title="Permalink">#</a></h3>

Type | Description
---- | -----------
number &#124; BigNumber &#124; Complex &#124; Array &#124; Matrix |  The complex conjugate of x


<h2 id="examples">Examples <a href="#examples" title="Permalink">#</a></h2>

```js
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
```


<h2 id="see-also">See also <a href="#see-also" title="Permalink">#</a></h2>

[re](re.html),
[im](im.html),
[arg](arg.html),
[abs](abs.html)