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作者 Vulpix 在 PTT [ Math ] 看板的留言(推文), 共7171則
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7F→: 所以這題目就是要你去定義關係啊。04/09 17:51
4F→: 不能積的那項剛好跟原本想算的差一個負號。04/08 14:33
5F→: 方法是對的,但後來的過程根本亂寫...04/08 14:33
6F→: 那個不定積分要是算得出來那還要繞這麼大一圈嗎XD04/08 14:33
5F→: 因為 (a^2+b^2)*z=0 for all z in Z[i]/(a+bi)04/06 16:01
6F→: 因為第三個人抽了兩支,就算抽到了,中獎籤一樣要04/05 23:44
7F→: 放回,可憐人啊。04/05 23:45
1F→: 真的,先學計算,熟悉符號的「使用」,再來看待這些04/04 12:00
2F→: 符號定義才會更深刻。04/04 12:01
1F→: 你可以先想想看1-norm(離均差)或∞-norm(半全距)04/03 16:47
13F→: 轉60度就是費馬點的精髓啊XD04/05 14:48
51F→: 大概就是...dx比1小、比0.0038小、比0.5小、比你認04/03 03:54
52F→: 識的隨便一個正數都還要小,所以不是正數。04/03 03:55
53F→: 同樣地,dx也比你認識的任何一個負數還大,所以也04/03 03:56
54F→: 不是負數。實數有三一律要遵守,所dx就只能是0囉?04/03 03:57
55F→: 但是dx/dx=1,0/0卻不能計算,所以dx也不是0。04/03 04:00
56F→: 那dx到底是不是實數呢?04/03 04:00
2F→: △AEF的正弦定理(HA是外接圓直徑)04/03 17:11