推 craig100 :pi/4? 06/14 23:43
→ newsonica :ㄜ,我沒有答案耶!@@ 06/14 23:45
→ MathforPhy :show step前請先深呼吸 06/14 23:50
→ newsonica :感謝樓上提供的連結,這樣的解法太可怕了 @@ 06/15 00:08
推 G41271 :原來這不定積分寫得出來喔XD 06/15 02:44
推 gj942l41l4 :這steps有點屌... 06/15 02:47