Last Updated
：2025/11/29
Karatsuba algorithm
Noun
Japanese Meaning
カラツバアルゴリズムは、高速乗算アルゴリズムの一つで、2つのn桁の数を乗算する際、従来の方法よりも少ない単一桁の乗算のみで結果を求める手法です。具体的には、n^(log₂3)（約n^(1.585)）回の単桁乗算に削減することで計算の効率を高める方法です。
（ plural ）
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(computing theory) A fast multiplication algorithm that reduces the multiplication of two n-digit numbers to at most nlog ₂₃≈n1.585 single-digit multiplications.
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Karatsuba algorithm
The Karatsuba algorithm dramatically reduced the number of single-digit multiplications needed for large integer multiplication, enabling faster high-precision computations.
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The Karatsuba algorithm dramatically reduced the number of single-digit multiplications needed for large integer multiplication, enabling faster high-precision computations.
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