推 whalelover :怎麼會趨近2 = = 12/12 02:30
→ MathWang :也許不是趨近於2，是假設性的問法 12/12 02:46
→ FAlin :pi^2 / 6 ? 12/12 02:47
推 whalelover :Basel problem 12/12 02:55
→ nonumber :數學傳播36卷1期euler級數 林琦焜 12/12 09:16
推 james2009 :分項對消+夾擠試試看 12/17 01:48