Quagga is a network routing software suite providing implementations of Open Shortest Path First (OSPF), Routing Information Protocol (RIP), Border Gateway Protocol (BGP) and IS-IS for Unix-like platforms, particularly Linux, Solaris, FreeBSD and NetBSD.[2][3] Quagga is distributed under the terms of the GNU General Public License v2 (GPL2). In April 2017, FRRouting forked from Quagga aiming for a
"PIC code" redirects here. For "presubscribed interexchange carrier code", see Carrier access code. In computing, position-independent code[1] (PIC[1]) or position-independent executable (PIE)[2] is a body of machine code that executes properly regardless of its memory address.[a] PIC is commonly used for shared libraries, so that the same library code can be loaded at a location in each program's
Diagram of a social network of 7-8-year-old children, mapped by asking each child to indicate two others they would like to sit next to in class. The majority of children have fewer connections than the average of those they are connected to. The friendship paradox is the phenomenon first observed by the sociologist Scott L. Feld in 1991 that on average, an individual's friends have more friends t
Lighting and reflection calculations, as in the video game OpenArena, use the fast inverse square root code to compute angles of incidence and reflection. Fast inverse square root, sometimes referred to as Fast InvSqrt() or by the hexadecimal constant 0x5F3759DF, is an algorithm that estimates , the reciprocal (or multiplicative inverse) of the square root of a 32-bit floating-point number in IEEE
Jonathan Gillette, known by the pseudonym why the lucky stiff (often abbreviated as _why), is a writer, cartoonist, artist, and programmer notable for his work with the Ruby programming language. Annie Lowrey described him as "one of the most unusual, and beloved, computer programmers" in the world.[1] Along with Yukihiro Matsumoto and David Heinemeier Hansson, he was seen as one of the key figure
Methods of computing square roots are algorithms for approximating the non-negative square root of a positive real number . Since all square roots of natural numbers, other than of perfect squares, are irrational,[1] square roots can usually only be computed to some finite precision: these methods typically construct a series of increasingly accurate approximations. Most square root computation me
"IV&V" redirects here. For NASA's IV&V Facility, see Independent Verification and Validation Facility. Verification and validation (also abbreviated as V&V) are independent procedures that are used together for checking that a product, service, or system meets requirements and specifications and that it fulfills its intended purpose.[1] These are critical components of a quality management system
3.1.1 Freedom of speech during the Coronavirus crisis of 2020
Mutual authentication or two-way authentication (not to be confused with two-factor authentication) refers to two parties authenticating each other at the same time in an authentication protocol. It is a default mode of authentication in some protocols (IKE, SSH) and optional in others (TLS). Mutual authentication is a desired characteristic in verification schemes that transmit sensitive data, in
An example of a binary hash tree. Hashes 0-0 and 0-1 are the hash values of data blocks L1 and L2, respectively, and hash 0 is the hash of the concatenation of hashes 0-0 and 0-1. In cryptography and computer science, a hash tree or Merkle tree is a tree in which every "leaf" node is labelled with the cryptographic hash of a data block, and every node that is not a leaf (called a branch, inner nod
This article contains phonetic transcriptions in the International Phonetic Alphabet (IPA). For an introductory guide on IPA symbols, see Help:IPA. For the distinction between [ ], / / and ⟨ ⟩, see IPA § Brackets and transcription delimiters. "I before E, except after C" is a mnemonic rule of thumb for English spelling. If one is unsure whether a word is spelled with the digraph ⟨ei⟩ or ⟨ie⟩, the
"about:mozilla" redirects here. For other uses of "about:", see about: URI scheme. This article relies excessively on references to primary sources. Please improve this article by adding secondary or tertiary sources. Find sources: "The Book of Mozilla" – news · newspapers · books · scholar · JSTOR (August 2017) (Learn how and when to remove this message) The Book of Mozilla is a computer Easter e
Hexspeak is a novelty form of variant English spelling using the hexadecimal digits. Created by programmers as memorable magic numbers, hexspeak words can serve as a clear and unique identifier with which to mark memory or data. Hexadecimal notation represents numbers using the 16 digits 0123456789ABCDEF. Using only the letters ABCDEF it is possible to spell several words. Further words can be mad
Taijin kyofusho (Japanese: 対人恐怖症, TKS, for taijin kyofusho symptoms) is a Japanese culture-specific syndrome. The term taijin kyofusho translates into the disorder (sho) of fear (kyofu) of interpersonal relations (taijin).[1] Those who have taijin kyofusho are likely to be extremely embarrassed about themselves or fearful of displeasing others when it comes to the functions of their bodies or thei
A map of Europe, with ISO 3166-1 alpha-2 codes in place of the full names of countries and other territories. 'Exceptional reservations' codes CQ, EU and UK are not shown. ISO 3166-1 alpha-2 codes are two-letter country codes defined in ISO 3166-1, part of the ISO 3166 standard[1] published by the International Organization for Standardization (ISO), to represent countries, dependent territories,
In cryptography, PBKDF1 and PBKDF2 (Password-Based Key Derivation Function 1 and 2) are key derivation functions with a sliding computational cost, used to reduce vulnerability to brute-force attacks.[1] PBKDF2 is part of RSA Laboratories' Public-Key Cryptography Standards (PKCS) series, specifically PKCS #5 v2.0, also published as Internet Engineering Task Force's RFC 2898. It supersedes PBKDF1,
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