exact approximation

См. также в других словарях:

• exact — exact, exacte [ ɛgza(kt), ɛgzakt ] adj. • XVIe; lat. exactus « poussé jusqu au bout, accompli », de exigere « achever » I ♦ 1 ♦ Vx ou littér. Qui est fait avec soin, en observant les règles prescrites, les normes. ⇒ minutieux, rigoureux,… …   Encyclopédie Universelle

• approximation — ap‧prox‧i‧ma‧tion [əˌprɒksˈmeɪʆn ǁ əˌprɑːk ] noun [countable] 1. a number, amount etc that is not exact, but is intended to give an idea of the real number, amount etc: • The figures are meant to be an approximation of the costs. 2. something… …   Financial and business terms

• Approximation — An approximation (represented by the symbol ≈) is an inexact representation of something that is still close enough to be useful. Although approximation is most often applied to numbers, it is also frequently applied to such things as… …   Wikipedia

• Approximation error — The approximation error in some data is the discrepancy between an exact value and some approximation to it. An approximation error can occur because the measurement of the data is not precise due to the instruments. (e.g., the accurate reading… …   Wikipedia

• Approximation algorithm — In computer science and operations research, approximation algorithms are algorithms used to find approximate solutions to optimization problems. Approximation algorithms are often associated with NP hard problems; since it is unlikely that there …   Wikipedia

• approximation — ap|prox|i|ma|tion [əˌprɔksıˈmeıʃən US əˌpra:k ] n [U and C] 1.) a number, amount etc that is not exact, but is almost correct = ↑estimate approximation of ▪ an approximation of the total number a rough/crude approximation (=one that is not very… …   Dictionary of contemporary English

• approximation — noun (C, U) 1 a number, amount etc that is not exact, but is almost correct: rough approximation (=not exact at all): Could you give us a rough approximation of the likely cost? 2 something that is similar to another thing, but not exactly the… …   Longman dictionary of contemporary English

• Exact test — In statistics, an exact (significance) test is a test where all assumptions upon which the derivation of the distribution of the test statistic is based are met, as opposed to an approximate test, in which the approximation may be made as close… …   Wikipedia

• Exact solutions in general relativity — In general relativity, an exact solution is a Lorentzian manifold equipped with certain tensor fields which are taken to model states of ordinary matter, such as a fluid, or classical nongravitational fields such as the electromagnetic field.… …   Wikipedia

• approximation — UK [əˌprɒksɪˈmeɪʃ(ə)n] / US [əˌprɑksɪˈmeɪʃ(ə)n] noun [countable/uncountable] Word forms approximation : singular approximation plural approximations 1) a nearly exact calculation, amount, number, time etc approximation of: I can only give you an… …   English dictionary

• approximation — ap|prox|i|ma|tion [ ə,praksı meıʃn ] noun count or uncount 1. ) a nearly exact calculation, amount, number, time, etc.: approximation of: I can only give you an approximation of the cost. 2. ) something that is similar to something else but is… …   Usage of the words and phrases in modern English