- Quasi-continuous function
In
mathematics , a quasi-continuous function is a function which is continuous only for a limitedrange of input values.Fact|date=October 2007
Wikimedia Foundation. 2010.
In
Wikimedia Foundation. 2010.
Quasi-derivative — In mathematics, the quasi derivative is one of several generalizations of the derivative of a function between two Banach spaces. The quasi derivative is a slightly stronger version of the Gâteaux derivative, though weaker than the Fréchet… … Wikipedia
Quasi-arithmetic mean — In mathematics and statistics, the quasi arithmetic mean or generalised f mean is one generalisation of the more familiar means such as the arithmetic mean and the geometric mean, using a function f. It is also called Kolmogorov mean after… … Wikipedia
Quasi-invariant measure — In mathematics, a quasi invariant measure mu; with respect to a transformation T , from a measure space X to itself, is a measure which, roughly speaking, is multiplied by a numerical function by T . An important class of examples occurs when X… … Wikipedia
Quasi-periodic oscillations — In high energy (X ray) astronomy, quasi periodic oscillations (QPOs) refer to the way the X ray light from an astronomical object flickers about certain frequencies. In these situations, the X rays are emitted near the inner edge of an accretion… … Wikipedia
Smooth function — A bump function is a smooth function with compact support. In mathematical analysis, a differentiability class is a classification of functions according to the properties of their derivatives. Higher order differentiability classes correspond to … Wikipedia
Concave function — In mathematics, a concave function is the negative of a convex function. A concave function is also synonymously called concave downwards, concave down, convex upwards, convex cap or upper convex. Contents 1 Definition 2 Properties 3 Examples … Wikipedia
Describing function — The Describing function (DF) method of Nikolay Mitrofanovich Krylov and Nikolay Bogolyubov is an approximate procedure for analyzing certain nonlinear control problems. It is based on quasi linearization, which is the approximation of the non… … Wikipedia
Graph continuous — In mathematics, and in particular the study of game theory, a function is graph continuous if it exhibits the following properties. The concept was originally defined by Partha Dasgupta and Eric Maskin in 1986 and is a version of continuity that… … Wikipedia
Survival function — The survival function, also known as a survivor function or reliability function, is a property of any random variable that maps a set of events, usually associated with mortality or failure of some system, onto time. It captures the probability… … Wikipedia
Quantile function — See also quantile. In probability theory, a quantile function of a probability distribution is the inverse F −1 of its cumulative distribution function (cdf) F . Assuming a continuous and strictly monotonic distribution function, scriptstyle… … Wikipedia