# EULERGAMMA
> The [Euler-Mascheroni][eulergamma] constant.
The [Euler-Mascheroni][eulergamma] constant `gamma` (also known as "Euler's constant" or "the Euler constant") is defined as the limit of the sequence
## Usage
```javascript
var EULERGAMMA = require( '@stdlib/constants/float64/eulergamma' );
```
#### EULERGAMMA
The [Euler-Mascheroni][eulergamma] constant.
```javascript
var bool = ( EULERGAMMA === 0.5772156649015329 );
// returns true
```
## Examples
```javascript
var EULERGAMMA = require( '@stdlib/constants/float64/eulergamma' );
console.log( EULERGAMMA );
// => 0.5772156649015329
```
* * *
## C APIs
### Usage
```c
#include "stdlib/constants/float64/eulergamma.h"
```
#### STDLIB_CONSTANT_FLOAT64_EULERGAMMA
Macro for the [Euler-Mascheroni][eulergamma] constant.
[eulergamma]: http://mathworld.wolfram.com/Euler-MascheroniConstant.html
