# LOG10E > Base 10 logarithm of the mathematical constant [_e_][eulers-number].

## Usage ```javascript var LOG10E = require( '@stdlib/constants/float64/log10-e' ); ``` #### LOG10E Base 10 logarithm of the mathematical constant [_e_][eulers-number]. ```javascript var bool = ( LOG10E === 0.4342944819032518 ); // returns true ```

## Examples ```javascript var LOG10E = require( '@stdlib/constants/float64/log10-e' ); console.log( LOG10E ); // => 0.4342944819032518 ```

[eulers-number]: https://en.wikipedia.org/wiki/E_%28mathematical_constant%29