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DOT pictograms. ISO 7001. Exit sign, a.k.a. "running man" [1] Gender symbols for public toilets. Map symbol. Japanese map symbols. International Breastfeeding Symbol. International Symbol of Access. Barber's pole.
A physical symbol system (also called a formal system) takes physical patterns (symbols), combining them into structures (expressions) and manipulating them (using processes) to produce new expressions. The physical symbol system hypothesis ( PSSH) is a position in the philosophy of artificial intelligence formulated by Allen Newell and Herbert ...
Without proper rendering support, you may see question marks, boxes, or other symbols. ISO 31-11:1992 was the part of international standard ISO 31 that defines mathematical signs and symbols for use in physical sciences and technology. It was superseded in 2009 by ISO 80000-2:2009 and subsequently revised in 2019 as ISO-80000-2:2019.
Pentagram. A pentagram (sometimes known as a pentalpha, pentangle, or star pentagon) is a regular five-pointed star polygon, formed from the diagonal line segments of a convex (or simple, or non-self-intersecting) regular pentagon. Drawing a circle around the five points creates a similar symbol referred to as the pentacle, [1] which is used ...
Bell character. A bell character (sometimes bell code) is a device control code originally sent to ring a small electromechanical bell on tickers and other teleprinters and teletypewriters to alert operators at the other end of the line, often of an incoming message. Though tickers punched the bell codes into their tapes, [1] printers generally ...
From MediaWiki 1.5, all projects use Unicode character encoding. Until the end of June 2005, when this new version came into use on Wikimedia projects, the English, Dutch, Danish, and Swedish Wikipedias used Windows-1252 (they declared themselves to be ISO-8859-1 but in reality browsers treat the two as synonymous and the MediaWiki software ...
21. honeycomb. automorphism group. In geometry, the 521 honeycomb is a uniform tessellation of 8-dimensional Euclidean space. The symbol 5 21 is from Coxeter, named for the length of the 3 branches of its Coxeter-Dynkin diagram. [1] By putting spheres at its vertices one obtains the densest-possible packing of spheres in 8 dimensions.
Power button marked with Standby symbol (IEC 60417-5009) turns the device on or off without fully disconnecting power supply. A power symbol is a symbol indicating that a control activates or deactivates a particular device. Such a control may be a rocker switch, a toggle switch, a push-button, a virtual switch on a display screen, or some ...