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A cryptographic hash function (CHF) is a hash algorithm (a map of an arbitrary binary string to a binary string with a fixed size of n {\displaystyle n}...

Significant figures, also referred to as significant digits or sig figs, are specific digits within a number written in positional notation that carry...

Sir Ronald Aylmer Fisher FRS (17 February 1890 – 29 July 1962) was a British polymath who was active as a mathematician, statistician, biologist, geneticist...

Pretty Good Privacy (PGP) is an encryption program that provides cryptographic privacy and authentication for data communication. PGP is used for signing...

Reverse mathematics is a program in mathematical logic that seeks to determine which axioms are required to prove theorems of mathematics. Its defining...

Anne Claude de Tubières-Grimoard de Pestels de Lévis, comte de Caylus, marquis d'Esternay, baron de Bransac (Anne Claude Philippe; 31 October, 1692 – 5...

This article gives some very general background to the mathematical idea of topos. This is an aspect of category theory, and has a reputation for being...

In computer science, termination analysis is program analysis which attempts to determine whether the evaluation of a given program halts for each input...

In algebraic geometry, a derived scheme is a homotopy-theoretic generalization of a scheme in which classical commutative rings are replaced with derived...

PiHex was a distributed computing project organized by Colin Percival to calculate specific bits of π. 1,246 contributors used idle time slices on almost...