# Tags

A tag is a keyword or label that categorizes your question with other, similar questions. Using the right tags makes it easier for others to find and answer your question.

 Type to find tags:
 matlab× 1405 a high-level language and interactive programming environment for numerical computation and visualization developed by MathWorks. MATLAB can be used when performing tasks such as signal proc… order-theory× 1395 Order theory deals with properties of orders, usually partial orders or quasi orders but not only those. Questions about properties of orders, general or particular, may fit into this category, as wel… mathematical-physics× 1358 "Mathematical physics consists of the application of mathematics to problems in physics and the development of mathematical methods suitable for such applications and for the formulation of physical t… computational-complexity× 1343 Computational complexity, a part of theoretical computer science that deals with understanding how efficiently a problem can be solved. math-history× 1340 for questions concerning history of mathematics, historical primacies of results, and evolution of terminology, symbols, and notations. conic-sections× 1335 Questions on conic sections and their properties; the curves formed by the intersection of a plane and a cone. Circles, ellipses, hyperbolas, and parabolas are examples of conic sections. cardinals× 1320 for questions about cardinals and related topics such as cardinal arithmetics, regular cardinals and cofinality. Do not confuse with [large-cardinals] which is a technical concept about st… contour-integration× 1312 Questions on the evaluation of integrals along a locus in the complex plane. inner-product-space× 1309 a vector space equipped with an inner product. The inner product is a generalisation of the "dot" product often used in vector calculus. abelian-groups× 1290 Should be used with the (group-theory) tag. A group $(G,*)$ is said to be abelian if $a*b=b*a$ for all $a,b\in G.$ model-theory× 1287 the study of (classes of) mathematical structures (e.g. groups, fields, graphs, universes of set theory) using tools from mathematical logic. Objects of study in model theory are mode… analytic-number-theory× 1273 Questions on the use of the methods of real/complex analysis in the study of number theory. tensor-products× 1271 Tensor products allow us to build "linear" objects from "multilinear" ones. It can refer to: basic ones from linear algebra/module theory, or more sophisticated versions from differential/algebraic ge… brownian-motion× 1269 Questions related to Brownian motion, a continuous stochastic process denoted by $W_t$, $t\geq 0$, with independent increments, such that $W(t)-W(s)$ is normally distributed, with $0$ mean and varianc… quadratics× 1264 Questions on quadratic functions and equations, second degree polynomials usually in the forms $y=ax^2+bx+c$, $y=a(x-b)^2+c$ or $y=a(x+b)(x+c)$. functional-equations× 1240 used for problems where the goal is to find all functions satisfying the given equation (and maybe some other conditions). So in this case, solving the equation means… factorial× 1234 Questions on the factorial function, $n!=n\times(n-1)\times\cdots\times1$. Consider using the tag (gamma-function) if dealing with noninteger arguments. extension-field× 1215 for questions about extension fields in abstract algebra. An extension field of a field K is just a field containing K as subfield, but interesting questions arise with them. Use this… homotopy-theory× 1208 homotopic, if one of them can by continuously deformed to another. This gives rise to an equivalence relation. A group called homotopy group can be obtained from the equivalence clas… solution-verification× 1208 For posts looking for feedback or verification of a proposed solution. factoring× 1199 For questions about finding factors of e.g. integers or polynomials game-theory× 1182 The study of competitive and non-competitive games, equilibrium concepts such as Nash equilibrium, and related subjects. Combinatorial games such as Nim are under [tag:combinatorial-game-theory], and … closed-form× 1169 any representation of a mathematical expression in terms of "known" functions, "known" usually being replaced with "elementary". numerical-linear-algebra× 1158 Questions on the various algorithms used in linear algebra computations (matrix computations). 3d× 1155 is for things related to 3-dimensions. For geometry of 3-dimensional solids, please use instead (solid-geometry). For geometry that is not on a plane, but otherwise agnostic of dimensions… coordinate-systems× 1150 Questions on coordinate systems, a geometric method where a point in n-dimensions is assigned a corresponding n-tuple of numbers. linear-transformations× 1147 In mathematics, a linear map (also called a linear mapping, linear transformation or, in some contexts, linear function) is a mapping V → W between two modules (including vector spaces) that preserves… boolean-algebra× 1109 structures which behave similar to a power set with complement, intersection and union. Questions regarding Boolean algebras as structures, or regarding functions defined from/to … uniform-convergence× 1103 For questions about uniform convergence of a sequence or a series of functions on a set. Also used with the tag [convergence]. predicate-logic× 1040 Questions concerning predicate calculus, i.e. the logic of quantifiers. algebraic-curves× 1010 an algebraic variety of dimension one. An affine algebraic curve can be described as the zero-locus of $n-1$ independent polynomials of $n$ variables in affine $n$-space over a f… statistical-inference× 1008 The area of statistics that focuses on taking information from samples of a population, in order to derive information on the entire population. distribution-theory× 1003 for questions about distributions (or generalized functions). For questions about "probability distributions", use (probability-distributions). For questions about distributions as sub-bu… equivalence-relations× 999 For reflexive, symmetric and transitive relations. Use it with the tag (relations). matrix-equations× 994 Questions related to equations, with matrices as coefficients and unknowns. real-numbers× 993 For questions about $\mathbb{R}$, the field of real numbers. Often used in conjunction with the real-analysis tag.