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作者 Vulpix 在 PTT [ Math ] 看板的留言(推文), 共7235則
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10F→:(0,0,0)不在S^2上面喔。只能代S^2上的點。01/17 17:24
12F→:話說f應該是打進R^601/17 17:27
1F→:f_even(x)=[f(x)+f(-x)]/2, f_odd(x)=[f(x)-f(-x)]/201/14 20:27
2F→:然後硬算01/14 20:27
4F→:全部,吧。01/10 21:10
1F→:「正對」=「不對」? 反例:f(x)=x^3+3x+x01/06 14:41
5F→:那就是解答錯了,因為第五選項是不對的。01/06 15:05
10F→:抱歉……是f(x)=x^3+3x^2+x沒錯。01/06 15:13
2F→:Lorent expansion 比 L'Hospital's rule 更強有力,01/06 02:43
3F→:其實限定奇異點最多只能是 isolated 的話,還是可以01/06 02:45
4F→:有 L'Hospital's rule 的。01/06 02:45
5F→:修正:限定奇異點最多只能是 pole。01/06 02:46
1F推:因為Cayley-Hamilton告訴你A^3是A^2,A,I的線性組合。01/01 20:13
2F→:只是要算等比級數的和而已喔~12/31 04:11
5F→:如果要用物理的話,比較推薦普通物理的運動學章節。12/31 17:30
6F→:但是遇到等加速度運動請只用微積分或跳過。12/31 17:31
3F→:變成6條六元一次方程XD12/29 00:41