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2014-08-2316:16:01Formatting TextWritings e-mails is fun, but, unfortunately, they do not look very nice, mainly because not all lines have the same l... 阅读全文
posted @ 2014-08-23 16:28
Naturain
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2014-08-23 11:01:11 -6:四面体 (1)内切球半径:r = 3V / (S1+S2+S3+S4) (2)体积:将四点组成三个向量AB,AC,AD,向量的混合积就是它们组成的平行六面体的体积,四面体体积是其体积的1/6。 -5:枚举一个集合(设为s)的所有超集,总共N个物品。(ts 阅读全文
posted @ 2014-08-23 11:01
Naturain
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