# Constants > Half-precision floating-point mathematical constants.
## Usage ```javascript var constants = require( '@stdlib/constants/float16' ); ``` #### constants Half-precision floating-point mathematical constants. ```javascript var c = constants; // returns {...} ```
- [`CBRT_EPS`][@stdlib/constants/float16/cbrt-eps]: cube root of half-precision floating-point epsilon. - [`EPS`][@stdlib/constants/float16/eps]: difference between one and the smallest value greater than one that can be represented as a half-precision floating-point number. - [`EXPONENT_BIAS`][@stdlib/constants/float16/exponent-bias]: the bias of a half-precision floating-point number's exponent. - [`MAX_SAFE_INTEGER`][@stdlib/constants/float16/max-safe-integer]: maximum safe half-precision floating-point integer. - [`MAX`][@stdlib/constants/float16/max]: maximum half-precision floating-point number. - [`MIN_SAFE_INTEGER`][@stdlib/constants/float16/min-safe-integer]: minimum safe half-precision floating-point integer. - [`NINF`][@stdlib/constants/float16/ninf]: half-precision floating-point negative infinity. - [`NUM_BYTES`][@stdlib/constants/float16/num-bytes]: size (in bytes) of a half-precision floating-point number. - [`PINF`][@stdlib/constants/float16/pinf]: half-precision floating-point positive infinity. - [`PRECISION`][@stdlib/constants/float16/precision]: effective number of bits in the significand of a half-precision floating-point number. - [`SMALLEST_NORMAL`][@stdlib/constants/float16/smallest-normal]: smallest positive **normalized** half-precision floating-point number. - [`SMALLEST_SUBNORMAL`][@stdlib/constants/float16/smallest-subnormal]: smallest positive **denormalized** half-precision floating-point number. - [`SQRT_EPS`][@stdlib/constants/float16/sqrt-eps]: square root of half-precision floating-point epsilon.
## Examples ```javascript var objectKeys = require( '@stdlib/utils/keys' ); var constants = require( '@stdlib/constants/float16' ); console.log( objectKeys( constants ) ); ```