(numerical) ratio

См. также в других словарях:

• Numerical cognition — Psychology Cognitive psychology Perception …   Wikipedia

• Numerical aperture — The numerical aperture with respect to a point P depends on the half angle θ of the maximum cone of light that can enter or exit the lens. In optics, the numerical aperture (NA) of an optical system is a dimensionless number that characterizes… …   Wikipedia

• Numerical semigroup — In mathematics, a numerical semigroup is a special kind of a semigroup. Its underlying set is the set of all nonnegative integers except a finite number and the binary operation is the operation of addition of integers. Also, the integer 0 must… …   Wikipedia

• Numerical sign problem — The numerical sign problem refers to the difficulty of numerically evaluating the integral of a highly oscillatory function of a large number of variables. Numerical methods fail because of the near cancellation of the positive and negative… …   Wikipedia

• Numerical approximations of π — This page is about the history of numerical approximations of the mathematical constant pi;. There is a summarizing table at chronology of computation of pi;. See also history of pi; for other aspects of the evolution of our knowledge about… …   Wikipedia

• Numerical smoothing and differentiation — An experimental datum value can be conceptually described as the sum of a signal and some noise, but in practice the two contributions cannot be separated. The purpose of smoothing is to increase the Signal to noise ratio without greatly… …   Wikipedia

• bypass ratio — The numerical ratio of mass airflow in the bypass duct (of a turbojet or a turbofan) to that of mass flow through the engine core. It is cold jet divided by hot jet …   Aviation dictionary

• golden ratio/rectangle/section — Numerical proportion considered to be an aesthetic ideal in classical design. It refers to the ratio of the base to the height of a rectangle or to the division of a line segment into two in such a way that the ratio of the shorter part to the… …   Universalium

• Golden ratio — For the Ace of Base album, see The Golden Ratio (album). Not to be confused with Golden number. The golden section is a line segment divided according to the golden ratio: The total length a + b is to the length of the longer segment a as the… …   Wikipedia

• Odds ratio — The odds ratio [1][2][3] is a measure of effect size, describing the strength of association or non independence between two binary data values. It is used as a descriptive statistic, and plays an important role in logistic regression. Unlike… …   Wikipedia

• Aspect Ratio — F/A/V The proportion of picture width to height (1.33:1, 1.66:1, 1.85:1 or 2.35:1). VP Aspect Ratio denotes the shape of your image. Typically there are two traditional ratios; 4 : 3 (TV) and 16 : 9 (Widescreen TV). WikiV The ratio of width to… …   Audio and video glossary