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数學 ●三昧● ですね! [獲た 物達を 是非 ご提示願います!^(2021)] 100 x^10+364 y^2 x^8+6200 z^2 x^8+96 y x^8+1840 y z x^8+1680 z x^8+336 x^8+492 y^4 x^6+17300 z^4 x^6+288 y^3 x^6+71280 y z^3 x^6-7840 z^3 x^6+1000 y^2 x^6+31148 y^2 z^2 x^6+20512 y z^2 x^6+8632 z^2 x^6+288 y x^6+5088 y^3 z x^6+9452 y^2 z x^6+2192 y z x^6+4080 z x^6+408 x^6+292 y^6 x^4-3600 z^6 x^4+288 y^5 x^4+165920 y z^5 x^4-73360 z^5 x^4+1056 y^4 x^4+287112 y^2 z^4 x^4+17088 y z^4 x^4-25272 z^4 x^4+672 y^3 x^4+178584 y^3 z^3 x^4+243396 y^2 z^3 x^4-71264 y z^3 x^4+21760 z^3 x^4+944 y^2 x^4+49391 y^4 z^2 x^4+70376 y^3 z^2 x^4+78596 y^2 z^2 x^4-15296 y z^2 x^4+15176 z^2 x^4+288 y x^4+4656 y^5 z x^4+13404 y^4 z x^4+9616 y^3 z x^4+13268 y^2 z x^4+1168 y z x^4+3120 z x^4+208 x^4+64 y^8 x^2+96 y^7 x^2-23040 y z^7 x^2+11520 z^7 x^2+456 y^6 x^2+322176 y^2 z^6 x^2-266496 y z^6 x^2+45504 z^6 x^2+480 y^5 x^2+512128 y^3 z^5 x^2+430912 y^2 z^5 x^2-447648 y z^5 x^2+71280 z^5 x^2+700 y^4 x^2+735840 y^4 z^4 x^2+280416 y^3 z^4 x^2+207816 y^2 z^4 x^2-262848 y z^4 x^2+56628 z^4 x^2+480 y^3 x^2+169440 y^5 z^3 x^2+459024 y^4 z^3 x^2+77264 y^3 z^3 x^2+74168 y^2 z^3 x^2-62928 y z^3 x^2+24480 z^3 x^2+344 y^2 x^2+23280 y^6 z^2 x^2+68392 y^5 z^2 x^2+113422 y^4 z^2 x^2+25808 y^3 z^2 x^2+24100 y^2 z^2 x^2-3552 y z^2 x^2+5832 z^2 x^2+96 y x^2+1408 y^7 z x^2+6144 y^6 z x^2+9344 y^5 z x^2+13816 y^4 z x^2+5888 y^3 z x^2+4644 y^2 z x^2+816 y z x^2+720 z x^2+36 x^2+64 y^8+96 y^7-92160 y^3 z^7+46080 y^2 z^7+164 y^6+1208064 y^4 z^6-927744 y^3 z^6+147456 y^2 z^6+192 y^5+946688 y^5 z^5+936704 y^4 z^5-994560 y^3 z^5+183168 y^2 z^5+136 y^4+224000 y^6 z^4+834432 y^5 z^4+226464 y^4 z^4-415488 y^3 z^4+114624 y^2 z^4+96 y^3+18432 y^7 z^3+166784 y^6 z^3+286048 y^5 z^3+16624 y^4 z^3-72072 y^3 z^3+39924 y^2 z^3+36 y^2+1024 y^8 z^2+10752 y^7 z^2+44016 y^6 z^2+48808 y^5 z^2+2975 y^4 z^2-1176 y^3 z^2+7884 y^2 z^2+512 y^8 z+1920 y^7 z+4736 y^6 z+4432 y^5 z+1308 y^4 z+1104 y^3 z+828 y^2 z=0 只今 Avoid the "Three Cs !" 1,Closed spaces with poor ventilation 2,Crowded places with many people nearby 3,Close-contact settings such as close-range conversations 密閉、密集、密接 それぞれの頭文字CをとってThree Csとなった Three Cs の時代 「数學 ●三昧●」の 諸氏は 必ず↓の 解答を 教示願いマス; 上の 代数曲面 S の 双対曲面 を 多様な発想で 導出願います； 獲た双対曲面を描いて下さい
