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From numbers

Some numbers are so distinctive they convey a lot of information about the domain of conversation around where they occur in text or source code. For instance, <math>pi</math> and Planck's constant are individually recognizable, although in the case of Planck's constant some knowledge of Physics is required. Other numbers may only become distinctive when combined together into a set of numbers, for instance there is nothing special about 0.5 until it is combined with half-a-dozen other numbers that are used to calculate sine/cosine using a Chebyshev series.

This Wiki is an attempt to collect together distinctive numbers.

Contents 1 Conversation domain 2 Tools 3 Sources of distinctive numbers 4 Media wiki

Conversation domain

• Algorithms
• astronomy
• biology
• chemistry
• engineering
• mathematics
• physics
• units

Tools

Tools that use these distinctive numbers include:

• numbers which extracts floating-point literals from files and prints out those that match known distinctive values.

Sources of distinctive numbers

• NIST Scientific and Technical databases
• Plouffe
• What's Special About This Number?

Media wiki

• Configuration settings list
• MediaWiki FAQ
• Consult the User's Guide for information on using the wiki software.