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# Function unaryPlus

Unary plus operation.
Boolean values and strings will be converted to a number, numeric values will be returned as is.

For matrices, the function is evaluated element wise.


## Syntax

```js
math.unaryPlus(x)
```

### Parameters

Parameter | Type | Description
--------- | ---- | -----------
`x` | number &#124; BigNumber &#124; Fraction &#124; string &#124; Complex &#124; Unit &#124; Array &#124; Matrix |  Input value

### Returns

Type | Description
---- | -----------
number &#124; BigNumber &#124; Fraction &#124; Complex &#124; Unit &#124; Array &#124; Matrix |  Returns the input value when numeric, converts to a number when input is non-numeric.


## Examples

```js
math.unaryPlus(3.5)      // returns 3.5
math.unaryPlus(1)     // returns 1
```


## See also

[unaryMinus](unaryMinus.md),
[add](add.md),
[subtract](subtract.md)