実二次体の類数の一つの計算法

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  • ジツ 2ジタイ ノ ルイスウ ノ 1ツ ノ ケイサンホウ
  • A method of computation for class numbers of real quadratic number fields

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The author improved the program "REALQF" version 2.3, which runs on UBASIC86 for PC-9801 and computes the class numbers of real quadratic number fields K = Q(√d). The new program "REALQF5" computes each class number of K with discriminant d ?10^(12) in 1 ～ 1.5 hours and each one with d ? 17×10^(12) in 6 ～ 9 hours by using PC-9801BA(40MHz).

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