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楼主 |
发表于 2024-3-30 15:54:08
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尊敬的mathe! 能试试(只是本人一厢情愿)太难了不感期望。
四边形内部存在一点P, 满足四边形的8个内角都是整数度数°, 这样的点有多少个?
三角形内部存在一点P, 满足三角形的6个内角都是整数度数°, 这样的点有123个。
三角形角格点问题里面有参考文献说到:机器运行了 73125.078 秒才获得全部正整数解。
附, 这样的点有123个。
001:{01, 28, 091=02, 28, 30}=sin01°sin28°sin091°=sin02°sin28°sin30°
002:{01, 29, 061=01, 30, 58}
003:{01, 29, 089=02, 29, 30}
004:{01, 30, 087=02, 29, 31}
005:{01, 56, 061=03, 28, 31}
006:{01, 58, 059=03, 29, 30}
008:{02, 26, 092=04, 26, 30}
009:{02, 28, 062=02, 30, 56}
010:{02, 28, 088=04, 28, 30}
011:{02, 30, 084=04, 28, 32}
012:{02, 34, 094=10, 16, 24}
013:{02, 42, 044=04, 14, 74}
014:{02, 46, 062=08, 12, 50}
015:{02, 52, 062=06, 26, 32}
016:{02, 56, 058=06, 28, 30}
017:{03, 18, 093=06, 12, 48}
018:{03, 24, 081=06, 15, 51}
019:{03, 24, 093=06, 24, 30}
020:{03, 27, 063=03, 30, 54}
021:{03, 27, 087=06, 27, 30}
022:{03, 30, 075=09, 12, 51}
023:{03, 30, 081=06, 27, 33}
024:{03, 30, 093=12, 18, 24}
025:{03, 39, 066=09, 15, 48}
026:{03, 39, 075=09, 24, 30}
027:{03, 39, 081=15, 18, 24}
028:{03, 42, 075=12, 21, 27}
029:{03, 48, 054=09, 15, 51}
030:{03, 48, 063=09, 24, 33}
031:{03, 48, 069=15, 18, 27}
032:{03, 54, 057=09, 27, 30}
033:{03, 54, 063=15, 21, 24}
034:{04, 13, 103=04, 26, 30}
035:{04, 22, 094=08, 22, 30}
036:{04, 26, 064=04, 30, 52}
037:{04, 26, 086=08, 26, 30}
038:{04, 30, 078=08, 26, 34}
039:{04, 38, 064=10, 18, 46}
040:{04, 39, 043=08, 13, 73]
041:{04, 44, 064=12, 22, 34}
042:{04, 52, 056=12, 26, 30}
043:{05, 20, 095=10, 20, 30}
044:{05, 25, 065=05, 30, 50}
045:{05, 25, 085=10, 25, 30}
046:{05, 30, 075=10, 25, 35}
047:{05, 40, 065=15, 20, 35}
048:{05, 50, 055=15, 25, 30}
049:{06, 06, 126=06, 12, 24}
050:{06, 09, 099=06, 12, 48}
051:{06, 12, 096=06, 18, 42}
052:{06, 12, 102=06, 24, 30}
053:{06, 12, 114=12, 18, 18}
054:{06, 15, 105=12, 18, 24}
055:{06, 18, 078=06, 24, 48}
056:{06, 18, 084=12, 12, 48}
057:{06, 18, 096=12, 18, 30}
058:{06, 21, 057=09, 12, 75}
059:{06, 24, 066=06, 30, 48}
060:{06, 24, 084=12, 24, 30}
061:{06, 30, 066=12, 18, 48}
062:{06, 30, 072=12, 24, 36}
063:{06, 30, 078=18, 24, 24}
064:{06, 36, 042=12, 12, 72}
065:{06, 36, 066=18, 18, 36}
066:{06, 42, 048=12, 18, 54}
067:{06, 42, 054=12, 24, 42}
068:{06, 48, 054=18, 24, 30}
069:{07, 16, 097=14, 16, 30}
070:{07, 23, 067=07, 30, 46}
071:{07, 23, 083=14, 23, 30}
072:{07, 30, 069=14, 23, 37}
073:{07, 32, 067=16, 21, 37}
074:{07, 46, 053=21, 23, 30}
075:{08, 11, 101=08, 22, 30}
076:{08, 14, 098=14, 16, 30}
077:[08, 22, 068=08, 30, 44}
078:{08, 22, 082=16, 22, 30}
079:{08, 28, 068=14, 24, 38}
080:{08, 30, 066=16, 22, 38}
081:{08, 33, 041=11, 16, 71}
082:{08, 44, 052=22, 24, 30}
083:{09, 12, 099=12, 18, 30}
084:{09, 15, 075=09, 18, 54}
085:{09, 15, 081=12, 15, 48}
086:{09, 15, 087=12, 18, 39}
087:{09, 18, 069=12, 15, 57}
088:{09, 21, 069=09, 30, 42}
089:{09, 21, 081=18, 21, 30}
090:{09, 24, 069=12, 27, 39}
091:{09, 30, 063=18, 21, 39}
092:{09, 33, 054=15, 21, 48}
093:{09, 42, 051=21, 27, 30}
094:{10, 10, 100=10, 20, 30}
095:{10, 20, 070=10, 30, 40}
096:{10, 20, 080=20, 20, 30}
097:{10, 26, 070=22, 24, 28}
098:{10, 30, 060=20, 20, 40}
099:{10, 40, 050=20, 30, 30}
100:{11, 19, 071=11, 30, 38}
101:{11, 19, 079=19, 22, 30}
102:{11, 30, 057=19, 22, 41}
103:{11, 38, 049=19, 30, 33}
104:{12, 12, 084=12, 18, 42}
105:{12, 18, 072=12, 30, 36}
106:{12, 18, 078=18, 24, 30}
107:{12, 24, 066=18, 30, 30}
108:{12, 30, 048=18, 18, 54}
109:{12, 30, 054=18, 24, 42}
110:{12, 33, 039=15, 18, 63}
111:{12, 36, 048=18, 30, 36}
112:{13, 17, 073=13, 30, 34}
113:[13, 17, 077=17, 26, 30}
114:{13, 30, 051=17, 26, 43}
115:{13, 34, 047=17, 30, 39}
116:{14, 16, 074=14, 30, 32}
117:{14, 16, 076=16, 28, 30}
118:{14, 30, 048=16, 28, 44}
119:{14, 32, 046=16, 30, 42}
120:{15, 15, 075=15, 30, 30}
121:{15, 24, 057=18, 27, 39}
122:{15, 30, 051=24, 27, 33}
123:{18, 24, 054=24, 30, 30} |
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