# FLOAT32_HALF_LN2 > One half times the [natural logarithm][@stdlib/math/base/special/ln] of `2` as a single-precision floating-point number.

## Usage ```javascript var FLOAT32_HALF_LN2 = require( '@stdlib/constants/float32/half-ln-two' ); ``` #### FLOAT32_HALF_LN2 One half times the [natural logarithm][@stdlib/math/base/special/ln] of `2` as a single-precision floating-point number. ```javascript var bool = ( FLOAT32_HALF_LN2 === 0.3465735912322998 ); // returns true ```

## Examples ```javascript var FLOAT32_HALF_LN2 = require( '@stdlib/constants/float32/half-ln-two' ); console.log( FLOAT32_HALF_LN2 ); // => 0.3465735912322998 ```

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## C APIs

### Usage ```c #include "stdlib/constants/float32/half_ln_two.h" ``` #### STDLIB_CONSTANT_FLOAT32_HALF_LN2 Macro for one half times the [natural logarithm][@stdlib/math/base/special/ln] of `2` as a single-precision floating-point number.

[@stdlib/math/base/special/ln]: https://www.npmjs.com/package/@stdlib/math-base-special-ln