fourth-order triangulation
41Triangulated category — A triangulated category is a mathematical category satisfying some axioms that are based on the properties of the homotopy category of spectra, and the derived category of an abelian category. A t category is a triangulated category with a t… …
42King and pawn versus king endgame — The chess endgame with a king and a pawn versus a king is one of the most important and fundamental endgames, other than the basic checkmates harvcol|Lasker|1915. It is important to master this endgame, since most other endgames have the… …
43Radio-frequency identification — (RFID) is a technology that uses radio waves to transfer data from an electronic tag, called RFID tag or label, attached to an object, through a reader for the purpose of identifying and tracking the object. Some RFID tags can be read from… …
44Donald Davidson (philosopher) — Donald Herbert Davidson Portrait of Donald Davidson by the photographer Steve Pyke in 1990. Full name Donald Herbert Davidson Born 6 March 1917(1917 03 06) Springfield, Massachusetts …
45Manifold — For other uses, see Manifold (disambiguation). The sphere (surface of a ball) is a two dimensional manifold since it can be represented by a collection of two dimensional maps. In mathematics (specifically in differential geometry and topology),… …
46Trigonometric functions — Cosine redirects here. For the similarity measure, see Cosine similarity. Trigonometry History Usage Functions Generalized Inverse functions …
47Escape from Monkey Island — Cover art displaying several main and supporting characters Developer(s) LucasArts …
48Encyclopedia of the Brethren of Purity — The Encyclopedia of the Brethren of Purity (Arabic: رسائل أخوان الصفا و خلان الوفا Rasa il ikhwan as safa wa khillan al wafa; also variously known as the Epistles of the Brethren of Sincerity , Epistles of the Brethren of Purity and Epistles of… …
50List of Russian people — The Millennium of Russia monument in Veliky Novgorod, featuring the statues and reliefs of the most celebrated people in the first 1000 years of Russian history …
