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作者 Vulpix 在 PTT [ Math ] 看板的留言(推文), 共7170則
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1F→:輾過地面才會是圓周長,空轉或打滑都是好例子。08/18 20:30
3F→:意思是你沒錯,不定積分不管多多少常數都無所謂08/18 13:23
1F推:3/4 正弦餘弦就可以算了08/15 14:07
2F推:step1做完就可以用餘弦定理了08/18 12:59
3F→:針對∠BAC做即可08/18 13:00
7F→:"for n≧0" 的 for 是 "for all" 還是只有 "某個n"08/18 13:45
13F推:compact group的話應該會一樣08/15 11:51
14F→:non-cpt.的話可以看Z: D(n)=2^n,D(-n)=1/(2^n)08/15 12:38
1F→:你誤會了,6是根。因為這種多項式不保證只有k個根。08/14 15:39
6F→:是啊,不過利用Gauss Lemma可以假設因式都是整係數08/14 18:39