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https://mathworld.wolfram.com/FlatSpaceTheorem.html Flat Space Theorem -- from Wolfram MathWorld The flat space theorem states that if it is possible to transform a coordinate system to a form where the metric elements g_(munu) are constants independent of... flat space wolfram mathworld theorem https://mathworld.wolfram.com/KarnaughMap.html Karnaugh Map -- from Wolfram MathWorld In combinatorial logic minimization, a device known as a Karnaugh map is frequently used. It is similar to a truth table, but the various variables are... karnaugh map wolfram mathworld https://mathworld.wolfram.com/ExceptionalSetofGoldbachNumbers.html Exceptional Set of Goldbach Numbers -- from Wolfram MathWorld goldbach numbers wolfram mathworld exceptional set https://mathworld.wolfram.com/IndexRaising.html Index Raising -- from Wolfram MathWorld Index raising converts a covariant tensor index into a contravariant tensor index by tensor contraction with the inverse of a metric tensor. If g^(ij) are the... index raising wolfram mathworld https://mathworld.wolfram.com/WienerFunction.html Wiener Function -- from Wolfram MathWorld wolfram mathworld wiener function https://mathworld.wolfram.com/ContactAngle.html Contact Angle -- from Wolfram MathWorld The contact angle between a sphere and a tangent plane is the angle alpha between the normal to the sphere at the point of tangency and the basal plane with... contact angle wolfram mathworld https://mathworld.wolfram.com/UniformlyDistributedSequence.html Uniformly Distributed Sequence -- from Wolfram MathWorld uniformly distributed wolfram mathworld sequence https://mathworld.wolfram.com/UnicursalCircuit.html Unicursal Circuit -- from Wolfram MathWorld A unicursal circuit is a circuit in which an entire graph is traversed in one route. Examples of curves that can be traced unicursally are the Mohammed sign... wolfram mathworld unicursal circuit https://mathworld.wolfram.com/Half-GCD.html Half-GCD -- from Wolfram MathWorld Given integers a and b with close to 2n bits each, the half-GCD of a and b is a 2×2 matrix [u v; u^' v^'] with determinant equal to -1 or 1 such that ua+vb=r... wolfram mathworld half gcd https://mathworld.wolfram.com/SuperperfectNumber.html Superperfect Number -- from Wolfram MathWorld A superperfect number is a number n such that sigma^2(n)=sigma(sigma(n))=2n, where sigma(n) is the divisor function. Even superperfect numbers are just... superperfect number wolfram mathworld https://mathworld.wolfram.com/Tetrabolo.html Tetrabolo -- from Wolfram MathWorld One of the 14 4-polyaboloes. wolfram mathworld tetrabolo https://mathworld.wolfram.com/Bimedian.html Bimedian -- from Wolfram MathWorld A bimedian is a line segment joining the midpoints of opposite sides of a quadrilateral or tetrahedron. Varignon's theorem states that the bimedians of a... wolfram mathworld bimedian https://mathworld.wolfram.com/KuratowskiGraph.html Kuratowski Graph -- from Wolfram MathWorld Kuratowski's theorem states that every nonplanar graph contains either the utility graph UG=K_(3,3) or the pentatope graph K_5 as a homeomorphic subgraph. The... kuratowski graph wolfram mathworld https://mathworld.wolfram.com/whatsnew/2014/12.html New in MathWorld -- December 2014 -- from Wolfram MathWorld [ 2026 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 ] new in mathworld december wolfram https://mathworld.wolfram.com/ReebFoliation.html Reeb Foliation -- from Wolfram MathWorld The Reeb foliation of the hypersphere S^3 is a foliation constructed as the union of two solid tori with common boundary. reeb foliation wolfram mathworld https://mathworld.wolfram.com/Arithmetic-GeometricMatrix.html Arithmetic-Geometric Matrix -- from Wolfram MathWorld The arithmetic-geometric matrix A_(AG) of a simple graph is a weighted adjacency matrix with weight f(d_i,d_j)=(d_i+d_j)/(2sqrt(d_id_j)), (1) where d_i are the... wolfram mathworld arithmetic geometric matrix https://mathworld.wolfram.com/Ego-CenteredNetwork.html Ego-Centered Network -- from Wolfram MathWorld wolfram mathworld ego centered network https://mathworld.wolfram.com/AdditiveWhiteGaussianNoise.html Additive White Gaussian Noise -- from Wolfram MathWorld Additive white Gaussian noise is a stochastic noise model in which a signal is combined additively with a stochastic process having zero mean and constant... white gaussian noise wolfram mathworld additive https://mathworld.wolfram.com/DoublyMagicSquare.html Doubly Magic Square -- from Wolfram MathWorld doubly magic wolfram mathworld square https://mathworld.wolfram.com/MetricDimension.html Metric Dimension -- from Wolfram MathWorld The metric dimension beta(G) (Tillquist et al. 2021) or dim(G) (Tomescu and Javid 2007, Ali et al. 2016) of a graph G is the smallest number of nodes required... metric dimension wolfram mathworld https://mathworld.wolfram.com/PocklingtonsCriterion.html Pocklington's Criterion -- from Wolfram MathWorld wolfram mathworld pocklington criterion https://mathworld.wolfram.com/Blecksmith-Brillhart-GerstTheorem.html Blecksmith-Brillhart-Gerst Theorem -- from Wolfram MathWorld The Blecksmith-Brillhart-Gerst theorem generalizes Schröter's formula. wolfram mathworld brillhart gerst theorem https://mathworld.wolfram.com/topics/NumberTheory.html Number Theory -- from Wolfram MathWorld number theory wolfram mathworld https://mathworld.wolfram.com/Orientation-Preserving.html Orientation-Preserving -- from Wolfram MathWorld wolfram mathworld orientation preserving https://mathworld.wolfram.com/Logarithm.html Logarithm -- from Wolfram MathWorld The logarithm log_bx of a positive real number x to a positive base b!=1 is the exponent y for which b^y=x. Therefore, for real x and positive b!=1,... wolfram mathworld logarithm https://mathworld.wolfram.com/BezoutsTheorem.html Bézout's Theorem -- from Wolfram MathWorld Bézout's theorem for curves states that, in general, two algebraic curves of degrees m and n intersect in m·n points and cannot meet in more than m·n points... wolfram mathworld theorem https://mathworld.wolfram.com/57-Cell.html 57-Cell -- from Wolfram MathWorld The 57-cell, also called the pentacontaheptachoron, is a regular self-dual locally projective polytope with 57 hemidodecahedral facets described by Coxeter... wolfram mathworld cell https://mathworld.wolfram.com/One-WayANOVA.html One-Way ANOVA -- from Wolfram MathWorld One-way ANOVA is an ANOVA model with one categorical factor. For observation j at factor level i, the fixed effects model is Y_(ij)=mu+alpha_i+epsilon_(ij),... one way anova wolfram mathworld https://mathworld.wolfram.com/WeaklyIndependent.html Weakly Independent -- from Wolfram MathWorld wolfram mathworld weakly independent https://www.mathworldacademy.us/post/sat-or-act-test-prep-success SAT vs ACT: Prep Better with MathWorld Academy Jun 4, 2024 - Discover how MathWorld Academy's tailored bootcamps help students excel in SAT and ACT exams with customized strategies and support. sat act prep better mathworld https://mathworld.wolfram.com/Expansive.html Expansive -- from Wolfram MathWorld wolfram mathworld expansive https://mathworld.wolfram.com/Non-AbelianGroup.html Non-Abelian Group -- from Wolfram MathWorld A non-Abelian group, also sometimes known as a noncommutative group, is a group some of whose elements do not commute. The simplest non-Abelian group is the... abelian group wolfram mathworld non https://mathworld.wolfram.com/RelationalProduct.html Relational Product -- from Wolfram MathWorld relational product wolfram mathworld https://mathworld.wolfram.com/SecondEppsteinPoint.html Second Eppstein Point -- from Wolfram MathWorld Let I_A, I_B, and I_C be the vertices of the inner Soddy triangle, and also let E_A, E_B, and E_C be the pairwise contact points of the three tangent circles.... wolfram mathworld second eppstein point