作者midarmyman (midarmyman)
看板trans_math
标题Re: [积分] 三重积分
时间Mon Jun 1 21:02:06 2009
※ 引述《ian60702 (pacific hero)》之铭言：
: Use a triple integral to find the volume of the solid.The solid bounded above
: by the elliptic paraboloid z=12-(x^2)-2(y^2) and below by the elliptic
: paraboloid z=2(x^2)+y^2
: 在下始终找不到适合的上下限来积分...
: 恳请板上高手帮忙...
12-3r^2 pi/2 2
4 ∫ ∫ ∫ rdrdθdz
0 0 0
--
※ 发信站: 批踢踢实业坊(ptt.cc)
◆ From: 140.117.198.78
1F：→ midarmyman:有答案吗? 140.117.198.78 06/01 21:02
2F：→ OKOK98:我猜应该是无解140.114.216.145 06/01 21:12
3F：→ midarmyman:WHY? 140.117.198.78 06/01 21:30
4F：→ OKOK98:我猜答案24拍~~140.114.216.145 06/01 21:42
5F：→ midarmyman:上面算出来就是24拍阿 140.117.198.78 06/01 21:47
6F：→ OKOK98:你的事子好像算不出答案喔?? 好像...140.114.216.145 06/01 21:50
7F：→ midarmyman:可以阿= = 算出来是8pi再乘以前面的四 140.117.198.78 06/01 21:54
8F：→ midarmyman:先积Z! 140.117.198.78 06/01 21:55
9F：→ OKOK98:嗯...可能是我算错了...140.114.216.145 06/01 21:59
10F：推 FightAcidlly:最外面的积分只能是数字140.112.250.117 06/01 22:41
11F：→ midarmyman:嗯嗯嗯 GLP比较强 140.117.198.78 06/01 22:50
12F：→ GLP:不要这样讲@@ 219.70.171.81 06/02 00:11