negative half-plane
91Bring radical — In algebra, a Bring radical or ultraradical is a root of the polynomial :x^5+x+a, ,where a is a complex number. (The root is chosen so the radical of a real is real, and the radical is a differentiable function of a in the complex plane, with a… …
92Occurrences of Grandi's series — Main article: Grandi s series Contents 1 Parables 2 Numerical series 3 Power series 4 Fourier series …
93Heisenberg group — In mathematics, the Heisenberg group, named after Werner Heisenberg, is the group of 3×3 upper triangular matrices of the form or its generalizations under the operation of matrix multiplication. Elements a, b, c can be taken from some… …
94Rayleigh–Taylor instability — The Rayleigh–Taylor instability, or RT instability (after Lord Rayleigh and G. I. Taylor), is an instability of an interface between two fluids of different densities, which occurs when the lighter fluid is pushing the heavier fluid. [citation… …
95List of mathematics articles (U) — NOTOC U U duality U quadratic distribution U statistic UCT Mathematics Competition Ugly duckling theorem Ulam numbers Ulam spiral Ultraconnected space Ultrafilter Ultrafinitism Ultrahyperbolic wave equation Ultralimit Ultrametric space… …
96McCullagh's parametrization of the Cauchy distributions — In probability theory, the standard Cauchy distribution is the probability distribution whose probability density function is for x real. This has median 0, and first and third quartiles respectively −1 and +1. Generally, a Cauchy distribution is …
97Atan2 — In computing, atan2 is a two argument function that makes it easy to find the angle round the origin of a point. When given the coordinates ( x , y ) the angle is atan2( y , x ). It is implemented in many different programming languages. The… …
98Stress field — A stress field is a region in a body for which the stress is defined at every point. Stress fields are widely used in fluid dynamics and materials science.Intuitively, one can picture the stress fields as the stress created by adding an extra… …
99Prime geodesic — In mathematics, a prime geodesic on a hyperbolic surface is a primitive closed geodesic, i.e. a geodesic which is a closed curve that traces out its image exactly once. Such geodesics are called prime geodesics because, among other things, they… …
100C0-semigroup — In mathematics, a C0 semigroup, also known as a strongly continuous one parameter semigroup, is a generalization of the exponential function. Just as exponential functions provide solutions of scalar linear constant coefficient ordinary… …
