Tags
A tag is a keyword or label that categorizes your question with other, similar questions.
Relating to integrations consisting of only(mainly) trigonometric functions and/or requiring substitutions by/of trigonometric functions.
1457 questions
Hypergeometric functions often refer to a family of functions ${}_p F_q$ represented by a corresponding series, where $p,q$ are non-negative integers. The case ${}_2F_1(a,b;c;z)$ is a special case of particular importance; it is known as the Gaussian, or ordinary, hypergeometric function.
1454 questions
For questions about proving and manipulating the AM-GM inequality. To be used necessarily with the [inequality] tag.
1450 questions
A percentage is a number or ratio expressed as a fraction of $100$. It is often denoted using the percent sign, "$\%$", or the abbreviation "$\mathrm{pct}$." -Wikipedia. Percentages are used when describing portions or proportional changes.
1440 questions
Use this tag when posting questions related to the concept of convexity and geometry. For example, for convex polygons.
1433 questions
A modular form is a (complex) analytic function on the upper half-plane satisfying a certain kind of functional equation with respect to the group action of the modular group.
1423 questions
A sequence of morphisms where the image of one is the kernel of the next. It is a useful thing to examine in the study of abstract algebra and homological algebra. Use this tag if your question is about the general theory of exact sequences, not just because an exact sequence appears in it. For sequences of numbers use the tag (sequences-and-series) instead.
1419 questions
Questions relating to the Poisson point process, a description of points uniformly and independently distributed at random over some space such as the real line. The number of points within some finite region of that space follows a Poisson distribution.
1414 questions
In Probability and Statistics, the standard deviation of a statistical population or data set is a measure of how much variation or dispersion exists from its average value. It is defined as the square root of the variance. Use this tag alongside (statistics).
1413 questions
Use this tag for questions related to ways of writing a positive integer as a sum of positive integers.
1405 questions
This tag is for questions relating to "Projection", which is nothing but the shadow cast by an object. An everyday example of a projection is the casting of shadows onto a plane. Projection has many application in various areas of Mathematics (such as Euclidean geometry, linear algebra, topology, category theory, set theory etc.) as well as Physics.
1390 questions
In mathematics, a surface integral is a generalization of multiple integrals to integration over surfaces. It can be thought of as the double integral analog of the line integral.
1384 questions
Questions about the statistical process of sampling from a population, in order to obtain information for use in statistical learning, estimation, hypothesis testing about some population or process. Use this tag along with the tags (probability), (probability-theory) or (statistics).
1377 questions
For questions on polygons, a flat shape consisting of straight lines that are joined to form a closed chain or circuit
1360 questions
This tag is for questions relating to cubic equations, these are polynomials with $~3^{rd}~$ power terms as the highest order terms.
1352 questions
Questions dealing with recursive algorithms. Their analysis often involves recurrence relations, which have their own tag.
1345 questions
This tag is for questions involving square numbers. A non-negative integer $n$ is called a square number if $n = k^2$ for some integer $k$. Consider using with the [elementary-number-theory] or [number-theory] tags.
1340 questions
A compact operator is an operator from normed space $X$ to a normed space $Y$, such that image of every bounded subset of $X$ is relatively compact in $Y$.
It's used with (functional-analysis) and (operator-theory) tags.
1337 questions
Questions on symmetric polynomials, polynomials in several variables that are invariant under permutation of the variables.
1334 questions
This tag is for questions relating to the Jordan normal form, also known as a Jordan canonical form or JCF of a matrix which is a similar block matrix having diagonal blocks when the matrix is diagonalizable and diagonal + nilpotent blocks more generally.
1331 questions
A Banach algebra is an algebra over the real or complex numbers which is equipped with a complete norm such that |xy| ≤ |x||y|. The study of Banach algebras is a major topic in functional analysis. If you are about to ask a question on C*-algebras or von Neumann algebras please use (c-star-algebras) or (von-neumann-algebras) instead (or in addition). Further related tags: (operator-algebras), (operator-theory), (banach-spaces), (hilbert-spaces).
1330 questions
For questions on finding and evaluating derivatives when a function is defined implicitly.
1329 questions
For questions about the extension of linear algebra to multilinear transformations of vector spaces.
1327 questions
For questions relating to moment-generating-functions (m.g.f.), which are a way to find moments like the mean$~(μ)~$ and the variance$~(σ^2)~$. Finding an m.g.f. for a discrete random variable involves summation; for continuous random variables, calculus is used.
1320 questions
The dual space of a vector space $V$ over a field $k$ is the vector space of all linear maps from $V$ into $k$.
1318 questions
For questions about analytic functions, which are real or complex functions locally given by a convergent power series.
1312 questions
Plane curves are continuous (or smooth) functions $\gamma\colon I\to\mathbb R^2$ from a real interval to the plane. Sometimes also the image $\gamma(I)$ is called curve.
1306 questions
For questions about linear regressions, an approach for modeling the relationship between a scalar dependent variable y and one or more explanatory variables.
1306 questions
For questions on the tangent line, the unique straight line that is the best linear approximation to a function at a point.
1303 questions
A word problem is an exercise with its main challenge being in translation from words to mathematical concepts and language including symbols and formulas. This tag is not about the unrelated topic in group theory.
1300 questions
For questions on parametrization, the process of finding parametric equations of a curve, a surface, or, more generally, a manifold or a variety, defined by an implicit equation.
1300 questions
Questions on the totient function $\phi(n)$ (sometimes $\varphi(n)$) of Euler, the function that counts the number of positive integers relatively prime to and less than or equal to $n$.
1298 questions
This is the lowest order monic polynomial satisfied by an object, such as a matrix or an algebraic element over a field.
1298 questions
For question about natural numbers $\Bbb N$, their properties and applications
1294 questions
For questions related to conjectures which are suspected to be true due to preliminary supporting evidence, but for which no proof or disproof has yet been found
1285 questions