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Quadruple-precision floating-point format

In computing, quadruple precision (or quad precision) is a binary floating-point–based computer number format that occupies 16 bytes (128 bits) with precision at least twice the 53-bit double precision.

Standards, Implementations & IEEE 754 quadruple-precision binary floating-point format: binary128

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Implementations

Hardware supportProgramming languagesFortranIntel Fortran CompilerGNU Fortran
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IEEE 754 quadruple-precision binary floating-point format: binary128

Sign bitExponentSignificandPrecisionSigned
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Double-double arithmetic

Arbitrary-precision arithmetic
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Overview

ComputingFloating-pointComputer number format128 bitsDouble precision
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IEEE 754 quadruple-precision binary floating-point format: binary128

Double-double arithmetic

Implementations

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Quadruple-precision floating-point format

Nodes68
Edges67
Triples0
Avg. degree1.97
Density0.029412
Components1

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precision ieee quadruple-precision floating-point quadruple bits arithmetic exponent 128-bit number double-double format 754 values significand value double double-precision support hardware

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