Fixed-point arithmetic: Difference between revisions

Revision as of 03:28, 7 January 2005

Revision as of 22:38, 2 March 2005

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[[C Plus Plus|C++]] that do not include such support built-in.

<!-- Was: Here are some high-profile uses of fixed-point representations -->

Here are some examples of fixed-point representations still in common use:

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# [[GnuCash]] is an application for tracking money. It is written in C and switched from a floating-point representation of money to a fixed-point implementation as of version 1.6. This change was made to avoid the potential rounding errors of floating-point representations.

# [[Tremor]] and [[Toast (disambiguation)|Toast]] are software libraries that decode the [[Ogg Vorbis]] and [[Full Rate|GSM Full Rate]] audio formats respectively. These codecs use fixed-point arithmetic because many audio decoding hardware devices do not have an FPU (to save money) and audio decoding requires enough performance that a software implementation of floating-point on low-speed devices would not produce output in real time.

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* [http://www.xiph.org/ogg/vorbis Ogg Vorbis web site]

[[Category:Computer terminology]] [[Category:Computer arithmetic]]

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