Last Updated:2025/11/29
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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2つのn桁の数の積を多くても n^{log_2 3}(約 n^{1.585})回の一桁掛け算にまで減らす高速乗算アルゴリズムは、大きな整数の掛け算に必要な演算回数を劇的に減らし、高精度な計算を高速化した。