equivalence sign
71Equation — This article is about equations in mathematics. For the chemistry term, see chemical equation. The first use of an equals sign, equivalent to 14x+15=71 in modern notation. From The Whetstone of Witte by Robert Recorde (1557). An equation is a… …
72Regular expression — In computing, a regular expression provides a concise and flexible means for matching (specifying and recognizing) strings of text, such as particular characters, words, or patterns of characters. Abbreviations for regular expression include… …
73MAD (programming language) — MAD Paradigm(s) Imperative Appeared in 1959 Developer Galler, Arden, and Graham Major implementations IBM 704, IBM 7090, UNIVAC 1108, Philco 210 211, IBM S/360, and IBM S/370 …
74Two's complement — The two s complement of a binary number is defined as the value obtained by subtracting the number from a large power of two (specifically, from 2 N for an N bit two s complement).A two s complement system or two s complement arithmetic is a… …
752-satisfiability — In computer science, 2 satisfiability (abbreviated as 2 SAT or just 2SAT) is the problem of determining whether a collection of two valued (Boolean or binary) variables with constraints on pairs of variables can be assigned values satisfying all… …
76Fictitious force — Classical mechanics Newton s Second Law History of classical mechanics  …
77Unicode character property — Unicode assigns character properties to each code point.[1] These properties can be used to handle characters (code points) in processes, like in line breaking, script direction right to left or applying controls. Slightly inconsequently, some… …
78Modular arithmetic — In mathematics, modular arithmetic (sometimes called clock arithmetic) is a system of arithmetic for integers, where numbers wrap around after they reach a certain value the modulus. The Swiss mathematician Leonhard Euler pioneered the modern… …
79List of philosophy topics (D-H) — DDaDai Zhen Pierre d Ailly Jean Le Rond d Alembert John Damascene Damascius John of Damascus Peter Damian Danish philosophy Dante Alighieri Arthur Danto Arthur C. Danto Arthur Coleman Danto dao Daodejing Daoism Daoist philosophy Charles Darwin… …
80Laws of Form — (hereinafter LoF ) is a book by G. Spencer Brown, published in 1969, that straddles the boundary between mathematics and of philosophy. LoF describes three distinct logical systems: * The primary arithmetic (described in Chapter 4), whose models… …
