# solve

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**Rubik's Cube**— Other names Magic Cube …112

**Partial differential equation**— A visualisation of a solution to the heat equation on a two dimensional plane In mathematics, partial differential equations (PDE) are a type of differential equation, i.e., a relation involving an unknown function (or functions) of several… …113

**Optimal solutions for Rubik's Cube**— Computer Graphics of a scrambled Rubik s cube There are many algorithms to solve scrambled Rubik s Cubes. The maximum number of face turns needed to solve any instance of the Rubik s cube is 20.[1] This number is also known as the diameter of the …114

**Reduction (complexity)**— Example of a reduction from a boolean satisfiability problem to a vertex cover problem. Blue vertices form a vertex cover which corresponds to truth values. In computability theory and computational complexity theory, a reduction is a… …115

**List of Charlie's Angels episodes**— This article is about the original 1976–1981 version of the show. For the 2011 version, see Charlie s Angels (2011 TV series). A list of episodes for Charlie s Angels (1976–1981). Contents 1 Summary 2 Season One (1976–1977) 3 Season Two… …116

**App4Math**— Infobox Software name = App4Math logo = developer = I.Q. Joe, LLC (I.Q. Joe) latest release version = 2.15 operating system = TI 83/TI 84 TI Nspire license = Proprietary website = [http://www.app4math.com www.app4math.com] App4Math App4Math is a… …117

**analysis**— /euh nal euh sis/, n., pl. analyses / seez /. 1. the separating of any material or abstract entity into its constituent elements (opposed to synthesis). 2. this process as a method of studying the nature of something or of determining its… …118

**List of Cyberchase episodes**— The Main Article is Cyberchase. Cyberchase is a math cartoon on PBS Kids GO! Cyberchase features the Cybersquad who use math and problem solving skills in a quest to save Cyberspace from the evil villain named The Hacker. Jackie, Matt, Inez, and… …119

**Diffie-Hellman key exchange**— (D H) is a cryptographic protocol that allows two parties that have no prior knowledge of each other to jointly establish a shared secret key over an insecure communications channel. This key can then be used to encrypt subsequent communications… …120

**Dynamic programming**— For the programming paradigm, see Dynamic programming language. In mathematics and computer science, dynamic programming is a method for solving complex problems by breaking them down into simpler subproblems. It is applicable to problems… …