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Posit
Posit or POSIT may refer to: * Postulate * Posit (number format), a universal number (unum type III) format since 2016 * POSIT, a computer vision algorithm that performs 3D pose estimation * RStudio#Development, Posit Software, PBC (formerly known as RStudio, PBC) See also * Postulator, one who guides a cause for Catholic beatification or canonization {{disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Posit (number Format)
Unums (''universal numbers'') are a family of formats and arithmetic, similar to floating point, proposed by John L. Gustafson in 2015. They are designed as an alternative to the ubiquitous IEEE 754 floating-point standard. The latest version (known as posits) can be used as a drop-in replacement for programs that do not depend on specific features of IEEE 754. Type I Unum The first version of unums, formally known as Type I unum, was introduced in Gustafson's book ''The End of Error'' as a superset of the IEEE-754 floating-point format. The defining features of the Type I unum format are: * a variable-width storage format for both the significand and exponent, and * a ''u-bit'', which determines whether the unum corresponds to an exact number (''u'' = 0), or an interval between consecutive exact unums (''u'' = 1). In this way, the unums cover the entire extended real number line ˆ’∞,+∞ For computation with the format, Gustafson proposed using int ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |