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semiconvergent

語源

semi- +‎ convergent

名詞

semiconvergent (複数形 semiconvergents)

  1. (mathematics) A kind of fraction. If , are successive convergents, then any fraction of the form , where a is a nonnegative integer and the numerators and denominators are between the n and n+1 terms inclusive, is a semiconvergent.
    The semiconvergents to the continued fraction expansion of a real number include all the rational approximations which are better than any approximation with a smaller denominator.

形容詞

semiconvergent (not comparable)

  1. (mathematics, of a matrix) For which the limit exists.
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