面白い数学の問題おしえて～な 44問目 (301ﾚｽ)
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抽出解除 必死ﾁｪｯｶｰ(本家) (べ) 自ID ﾚｽ栞 あぼーん
ﾘﾛｰﾄﾞ規制です｡10分ほどで解除するので､他のﾌﾞﾗｳｻﾞへ避難してください｡
108(1): １３２人目の素数さん [sage] 07/08(火)07:40 ID:L3SnlnSE(1/9)
あれ？大先生にといてもらったんだけど？
https://ja.wolframalpha.com/input?i=19x%2By+%3D+1%2C+210+x+-p+x+%2B+p+y+%3D+21+%E3%82%92+x%2C+y+%E3%81%AB%E3%81%A4%E3%81%84%E3%81%A6%E8%A7%A3%E3%81%8F
110: １３２人目の素数さん [sage] 07/08(火)07:59 ID:L3SnlnSE(2/9)
ありゃほんとだ
111: １３２人目の素数さん [sage] 07/08(火)08:04 ID:L3SnlnSE(3/9)
結局 p = 1 やな
https://ja.wolframalpha.com/input?i=19x%2By+%3D+1%2C210+x+-px%2Bpy+-+p%28p-1%29*x+%3D+21%E3%82%92+x%2C+y+%E3%81%AB%E3%81%A4%E3%81%84%E3%81%A6%E8%A7%A3%E3%81%8F
113: １３２人目の素数さん [sage] 07/08(火)08:21 ID:L3SnlnSE(4/9)
https://ja.wolframalpha.com/input?i=19x%2By+-2px%3D+1%2C+210+x+-p+x+%2B+p+y+%3D+21+%E3%82%92+x%2C+y+%E3%81%AB%E3%81%A4%E3%81%84%E3%81%A6%E8%A7%A3%E3%81%8F
114: １３２人目の素数さん [sage] 07/08(火)08:21 ID:L3SnlnSE(5/9)
orz
115: １３２人目の素数さん [sage] 07/08(火)08:23 ID:L3SnlnSE(6/9)
https://ja.wolframalpha.com/input?i=%E3%80%80minimize+%7B+%7C%28-189+%2B+41+p%29%2F%282+%28105+-+10+p+%2B+p%5E2%29%29%7C+%2C+%7Bp%2C20%7D%7D&assumption=%7B%22F%22%2C+%22GlobalMinimizeCalculator%22%2C+%22curvefunction%22%7D+-%3E%22max+%7B+%7C%28-189+%2B+41+p%29%2F%282+%28105+-+10+p+%2B+p%5E2%29%29%7C+%2C%2821+-+p%29%2F%28210+-+20+p+%2B+2+p%5E2%29%7D%22&assumption=%7B%22C%22%2C+%22minimize%22%7D+-%3E+%7B%22Calculator%22%2C+%22dflt%22%7D&assumption=%7B%22F%22%2C+%22GlobalMinimizeCalculator%22%2C+%22domain%22%7D+-%3E%221+%3C%3D+p+%3C%3D+20%22
116: １３２人目の素数さん [sage] 07/08(火)08:31 ID:L3SnlnSE(7/9)
https://ja.wolframalpha.com/input?i=Minimize%5B%7BMax%5BAbs%5B%28-189+%2B+41+p%29%2F%282+%28105+-+10+p+%2B+p%5E2%29%29%5D%2C+Abs%5B%2821+-+p%29%2F%28210+-+20+p+%2B+2+p%5E2%29%5D%5D%2C+1+%3C%3D+p+%3C%3D+20%7D%2C+%7Bp%7D%5D
117: １３２人目の素数さん [sage] 07/08(火)09:02 ID:L3SnlnSE(8/9)
https://ja.wolframalpha.com/input?i=20x%2By+-2%28p-1%29x+-+x+%3D+1%2C+210+x+-p%28p-1%29+x+-px+%2B+p+y+%3D+21+%E3%82%92+x%2C+y+%E3%81%AB%E3%81%A4%E3%81%84%E3%81%A6%E8%A7%A3%E3%81%8F
118(1): １３２人目の素数さん [sage] 07/08(火)09:04 ID:L3SnlnSE(9/9)
https://ja.wolframalpha.com/input?i=%7B6*%28-1%2F8%29%2B14*1%2F8%2C%281%2B2%2B3%2B4%2B5%2B6%29*%28-1%2F8%29%2B%287%2B8%2B9%2B10%2B11%2B12%2B13%2B14%2B15%2B16%2B17%2B18%2B19%2B20%29*1%2F8%7D
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