アルゴリズムを変更してみた

N=4: .61803→.618035

N=5: .57735→.577351

N=6: .554958→.554959

N=7: .541196→.541197

N=8: .532089→.53209

N=9: .525731→.525732

N=10: .521109→.521109

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N=20: .505648→.505648

N=30: .502577→.50258

N=40: .501466→.501473

N=50: .500951→.50095

N=60: .500658→.500665

N=70: .500483→.500493

N=80: .500368→.50038

N=90: .500284→.5003

N=100: .500202→.500253

おそらく予想は正しい。このあたりから数値計算誤差が増大する

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N=200: .500019→.500078

N=300: .499728→.50004

N=400: .499494→.500187

N=500: .499305→.500209

N=600: .498158→.500315

N=700: .500599→.499757

N=800: .499392→.500194

N=900: .498544→.500199

N=1000: .500452→.499727

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N=2000: .492581→.502209

N=3000: .494494→.500844

N=4000: .480263→.510246

N=5000: .449789→.522112

N=6000: .372699→.534113

N=7000: .380983→.537677

N=8000: .384231→.548003

N=9000: .449521→.581272

N=10000: .433774→.501625

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