binary approximation - перевод на русский
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binary approximation - перевод на русский

THEORY OF GETTING ACCEPTABLY CLOSE INEXACT MATHEMATICAL CALCULATIONS
Approximation theory/Proofs; Chebyshev approximation; Approximation theory/proofs; Tchebyscheff approximation; Approximation Theory

binary approximation      

математика

бинарное приближение

binary opposition         
PAIR OF RELATED TERMS OR CONCEPTS THAT ARE OPPOSITE IN MEANING
Binary order; Binary thinking; Binary oppositions; Binary pair; Opposition theory

['bainəriɔpɔ'ziʃ(ə)n]

лингвистика

бинарная оппозиция

eclipsing binary         
  • cataclysmic variable system]]
  • The two visibly distinguishable components of [[Albireo]]
  • near-infrared H-band]], sorted according to orbital phase.
  • plasma ejection]]s from [[V Hydrae]]
  • Artist's impression of the evolution of a hot high-mass binary star
  • This video shows an artist's impression of an eclipsing binary star system. As the two stars orbit each other they pass in front of one another and their combined brightness, seen from a distance, decreases.
  • Eclipsing binary showing different phases of the smaller secondary relative to the primary star (center)
  • HD 106906]]
  • Schematic of a binary star system with one planet on an S-type orbit and one on a P-type orbit
  • Artist's impression of the binary star system [[AR Scorpii]]
  • Artist's impression of the sight from a (hypothetical) moon of planet [[HD 188753 Ab]] (upper left), which orbits a [[triple star system]]. The brightest companion is just below the horizon.
  • [[Luhman 16]], the third closest star system, contains two [[brown dwarf]]s.
STAR SYSTEM CONSISTING OF TWO STARS
Spectroscopic binary; Eclipsing binary; Telescopic binary; Detached binary; Semidetached binary; Astrometric binary; Double star system; Binary star system; Binary stars; Spectroscopic binaries; Eclipsing binaries; Companion star; Eclipsing Variable Star; Binary Star; Astrometric binaries; Binary (astronomy); Eclipsing variable; Detached binaries; Semidetached binaries; Visual binaries; Close binary; Eclipsing binary star; Eclipsing variable star; Invisible companion; Twin stars; Twin star system; Eclipsing variable stars; Binary Stars; Double Stars; Double-lined spectroscopic binary; Physical double star; Photometric binary; Hot companion; Secondary eclipse; Astrometric companion; Proper motion companion; Double sun; Binary star formation; Binary star system formation; Double-lined binary; AR Lacertae variable; Binary-star system; S type orbit; Double star systems; Primary eclipse; Binary star systems; Double suns; Compact binary; Compact binary star; Compact binary star system

астрономия

двойная затмевающаяся

затменно-двойная (о планете)

Определение

eclipsing binary
¦ noun Astronomy a binary star whose brightness varies periodically as the two components pass one in front of the other.

Википедия

Approximation theory

In mathematics, approximation theory is concerned with how functions can best be approximated with simpler functions, and with quantitatively characterizing the errors introduced thereby. Note that what is meant by best and simpler will depend on the application.

A closely related topic is the approximation of functions by generalized Fourier series, that is, approximations based upon summation of a series of terms based upon orthogonal polynomials.

One problem of particular interest is that of approximating a function in a computer mathematical library, using operations that can be performed on the computer or calculator (e.g. addition and multiplication), such that the result is as close to the actual function as possible. This is typically done with polynomial or rational (ratio of polynomials) approximations.

The objective is to make the approximation as close as possible to the actual function, typically with an accuracy close to that of the underlying computer's floating point arithmetic. This is accomplished by using a polynomial of high degree, and/or narrowing the domain over which the polynomial has to approximate the function. Narrowing the domain can often be done through the use of various addition or scaling formulas for the function being approximated. Modern mathematical libraries often reduce the domain into many tiny segments and use a low-degree polynomial for each segment.