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IEEE 754 revision

Index IEEE 754 revision

IEEE 754-2008 (previously known as IEEE 754r) was published in August 2008 and is a significant revision to, and replaces, the IEEE 754-1985 floating point standard. [1]

25 relations: Binary number, Binary-coded decimal, C Sharp (programming language), COBOL, Debugger, Denormal number, Densely packed decimal, Floating-point arithmetic, Half-precision floating-point format, IEEE 754-1985, IEEE 854-1987, Infinity, Java (programming language), Maxima and minima, Multiply–accumulate operation, NaN, PL/I, Positional notation, Python (programming language), Quadruple-precision floating-point format, Rexx, Signed zero, Silicon Valley, Standardization, William Kahan.

Binary number

In mathematics and digital electronics, a binary number is a number expressed in the base-2 numeral system or binary numeral system, which uses only two symbols: typically 0 (zero) and 1 (one).

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Binary-coded decimal

In computing and electronic systems, binary-coded decimal (BCD) is a class of binary encodings of decimal numbers where each decimal digit is represented by a fixed number of bits, usually four or eight.

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C Sharp (programming language)

C# (/si: ʃɑːrp/) is a multi-paradigm programming language encompassing strong typing, imperative, declarative, functional, generic, object-oriented (class-based), and component-oriented programming disciplines.

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COBOL

COBOL (an acronym for "common business-oriented language") is a compiled English-like computer programming language designed for business use.

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Debugger

A debugger or debugging tool is a computer program that is used to test and debug other programs (the "target" program).

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Denormal number

In computer science, denormal numbers or denormalized numbers (now often called subnormal numbers) fill the underflow gap around zero in floating-point arithmetic.

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Densely packed decimal

Densely packed decimal (DPD) is an efficient method for binary encoding decimal digits.

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Floating-point arithmetic

In computing, floating-point arithmetic is arithmetic using formulaic representation of real numbers as an approximation so as to support a trade-off between range and precision.

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Half-precision floating-point format

In computing, half precision is a binary floating-point computer number format that occupies 16 bits (two bytes in modern computers) in computer memory.

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IEEE 754-1985

IEEE 754-1985 was an industry standard for representing floating-point numbers in computers, officially adopted in 1985 and superseded in 2008 by IEEE 754-2008.

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IEEE 854-1987

IEEE Std 854-1987, the Standard for Radix-Independent Floating-Point Arithmetic, was the first Institute of Electrical and Electronics Engineers (IEEE) standard for floating-point arithmetic with radix 2 or radix 10 (not more general than that, despite the title).

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Infinity

Infinity (symbol) is a concept describing something without any bound or larger than any natural number.

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Java (programming language)

Java is a general-purpose computer-programming language that is concurrent, class-based, object-oriented, and specifically designed to have as few implementation dependencies as possible.

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Maxima and minima

In mathematical analysis, the maxima and minima (the respective plurals of maximum and minimum) of a function, known collectively as extrema (the plural of extremum), are the largest and smallest value of the function, either within a given range (the local or relative extrema) or on the entire domain of a function (the global or absolute extrema).

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Multiply–accumulate operation

In computing, especially digital signal processing, the multiply–accumulate operation is a common step that computes the product of two numbers and adds that product to an accumulator.

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NaN

In computing, NaN, standing for not a number, is a numeric data type value representing an undefined or unrepresentable value, especially in floating-point calculations.

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PL/I

PL/I (Programming Language One, pronounced) is a procedural, imperative computer programming language designed for scientific, engineering, business and system programming uses.

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Positional notation

Positional notation or place-value notation is a method of representing or encoding numbers.

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Python (programming language)

Python is an interpreted high-level programming language for general-purpose programming.

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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) in with precision more than twice the 53-bit double precision.

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Rexx

Rexx (Restructured Extended Executor) is an interpreted programming language developed at IBM by Mike Cowlishaw.

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Signed zero

Signed zero is zero with an associated sign.

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Silicon Valley

Silicon Valley (abbreviated as SV) is a region in the southern San Francisco Bay Area of Northern California, referring to the Santa Clara Valley, which serves as the global center for high technology, venture capital, innovation, and social media.

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Standardization

Standardization or standardisation is the process of implementing and developing technical standards based on the consensus of different parties that include firms, users, interest groups, standards organizations and governments Standardization can help to maximize compatibility, interoperability, safety, repeatability, or quality.

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William Kahan

William "Velvel" Morton Kahan (born June 5, 1933) is a Canadian mathematician and computer scientist who received the Turing Award in 1989 for "his fundamental contributions to numerical analysis", was named an ACM Fellow in 1994, and inducted into the National Academy of Engineering in 2005.

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Redirects here:

IEEE 754-2008, IEEE 754r.

References

[1] https://en.wikipedia.org/wiki/IEEE_754_revision

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