time-to-botec/squiggle/node_modules/@stdlib/number/float64/base

Float64

Base utilities for double-precision floating-point numbers.

Usage

var ns = require( '@stdlib/number/float64/base' );

ns

Base utilities for double-precision floating-point numbers.

var o = ns;
// returns {...}

• exponent( x ): return an integer corresponding to the unbiased exponent of a double-precision floating-point number.
• fromBinaryString( bstr ): create a double-precision floating-point number from a literal bit representation.
• fromInt64Bytes( bytes, stride, offset ): convert a signed 64-bit integer byte array to a double-precision floating-point number.
• fromWords( high, low ): create a double-precision floating-point number from a higher order word and a lower order word.
• getHighWord( x ): return an unsigned 32-bit integer corresponding to the more significant 32 bits of a double-precision floating-point number.
• getLowWord( x ): return an unsigned 32-bit integer corresponding to the less significant 32 bits of a double-precision floating-point number.
• normalize( [out,] x ): return a normal number y and exponent exp satisfying x = y * 2^exp.
• setHighWord( x, high ): set the more significant 32 bits of a double-precision floating-point number.
• setLowWord( x, low ): set the less significant 32 bits of a double-precision floating-point number.
• signbit( x ): return a boolean indicating if the sign bit for a double-precision floating-point number is on (true) or off (false).
• toBinaryString( x ): return a string giving the literal bit representation of a double-precision floating-point number.
• float64ToFloat32( x ): convert a double-precision floating-point number to the nearest single-precision floating-point number.
• float64ToInt32( x ): convert a double-precision floating-point number to a signed 32-bit integer.
• float64ToInt64Bytes( x ): convert an integer-valued double-precision floating-point number to a signed 64-bit integer byte array according to host byte order (endianness).
• float64ToUint32( x ): convert a double-precision floating-point number to an unsigned 32-bit integer.
• toWords( [out,] x ): split a double-precision floating-point number into a higher order word and a lower order word.

Examples

var objectKeys = require( '@stdlib/utils/keys' );
var ns = require( '@stdlib/number/float64/base' );

console.log( objectKeys( ns ) );