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作者 TWN2 在 PTT [ Math ] 看板的留言(推文), 共112則
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1F→:題目都寫錯還證甚麼...11/09 16:50
3F→:a = [(a+b)+(c+a)-2*(b+c)]/2 end11/07 15:52
1F→:[n/(n+1)]^n在n->inf的極限是e好嗎.. 雖然發音一樣11/07 13:43
2F→:應該是e^(-1) 漏打inverse11/07 13:45
1F→:google 第一項就有了...= =a11/07 12:26
1F推:SVD11/05 01:22
12F→:重點是會出現所有人都數不到第一百次的狀況吧11/04 12:10
14F→:大家都出去過不表示有人數到至少一百次 懂了嗎11/05 16:59
17F→:問題是有非0的機率會所有人都數不到100次 就爆了11/06 17:29
19F→:前一百人次剛好每人各出去一次 這樣就不行11/07 02:05
3F推:Y~N(0,k), Z->chi-square10/31 14:59
2F推:a,b,c都是x^3+2x^2-k=0的根 兩兩相異=>a+b+c=-210/27 14:43
1F推:令B=A^(-1)(I-C)=>B_i=A^(-1)(I-C^(2^i))得證10/26 14:24