quarter-period

мат. четверть периода - imaginary quarter-period - real quarter-period

Большой англо-русский и русско-английский словарь. 2001.

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  • Quarter period — In mathematics, the quarter periods K ( m ) and iK prime;( m ) are special functions that appear in the theory of elliptic functions. The quarter periods K and iK are given by:K(m)=int 0^{pi/2} frac{d heta}{sqrt {1 m sin^2 heta and :iK (m) = iK(1 …   Wikipedia

  • quarter day — noun a Christian holy day; one of four specified days when certain payments are due • Regions: ↑United Kingdom, ↑UK, ↑U.K., ↑Britain, ↑United Kingdom of Great Britain and Northern Ireland, ↑Great Britain • Hypernyms: ↑ …   Useful english dictionary

  • quarter days — In Britain, quarter days have since the Middle Ages marked the beginning of each new quarter (= period of three months) of the year. Rent and interest payments are often made on quarter days, and many contracts, especially concerning property,… …   Universalium

  • quarter-on-quarter — UK US adjective [before noun] ► ACCOUNTING, FINANCE used to describe a period of three months in a company s financial year when comparing one period with the previous period: » We ve had steady quarter on quarter growth in market share …   Financial and business terms

  • Quarter — Quar ter (kw[aum]r t[ e]r), n. [F. quartier, L. quartarius a fourth part, fr. quartus the fourth. See {Quart}.] 1. One of four equal parts into which anything is divided, or is regarded as divided; a fourth part or portion; as, a quarter of a… …   The Collaborative International Dictionary of English

  • Quarter aspect — Quarter Quar ter (kw[aum]r t[ e]r), n. [F. quartier, L. quartarius a fourth part, fr. quartus the fourth. See {Quart}.] 1. One of four equal parts into which anything is divided, or is regarded as divided; a fourth part or portion; as, a quarter… …   The Collaborative International Dictionary of English

  • Quarter back — Quarter Quar ter (kw[aum]r t[ e]r), n. [F. quartier, L. quartarius a fourth part, fr. quartus the fourth. See {Quart}.] 1. One of four equal parts into which anything is divided, or is regarded as divided; a fourth part or portion; as, a quarter… …   The Collaborative International Dictionary of English

  • Quarter badge — Quarter Quar ter (kw[aum]r t[ e]r), n. [F. quartier, L. quartarius a fourth part, fr. quartus the fourth. See {Quart}.] 1. One of four equal parts into which anything is divided, or is regarded as divided; a fourth part or portion; as, a quarter… …   The Collaborative International Dictionary of English

  • Quarter bill — Quarter Quar ter (kw[aum]r t[ e]r), n. [F. quartier, L. quartarius a fourth part, fr. quartus the fourth. See {Quart}.] 1. One of four equal parts into which anything is divided, or is regarded as divided; a fourth part or portion; as, a quarter… …   The Collaborative International Dictionary of English

  • Quarter block — Quarter Quar ter (kw[aum]r t[ e]r), n. [F. quartier, L. quartarius a fourth part, fr. quartus the fourth. See {Quart}.] 1. One of four equal parts into which anything is divided, or is regarded as divided; a fourth part or portion; as, a quarter… …   The Collaborative International Dictionary of English

  • Quarter boat — Quarter Quar ter (kw[aum]r t[ e]r), n. [F. quartier, L. quartarius a fourth part, fr. quartus the fourth. See {Quart}.] 1. One of four equal parts into which anything is divided, or is regarded as divided; a fourth part or portion; as, a quarter… …   The Collaborative International Dictionary of English

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