作者midarmyman (midarmyman)
看板trans_math
标题Re: [积分] 三重积
时间Thu Jun 18 01:13:43 2009
※ 引述《midarmyman (midarmyman)》之铭言：
: Express the volume of the wedge in the first octant that is cut from the
: cylinder
: y^2+x^2=1 by the plane y=z and z=1 as a triple integral.
: And find the exact value of this volume.
: 提供一下柱座标的方法(上下限)
1 pi/2 1
∫ ∫ ∫ rdzdθdr
0 0 rsinθ
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※ 发信站: 批踢踢实业坊(ptt.cc)
◆ From: 140.117.198.78
※ 编辑: midarmyman 来自: 140.117.198.78 (06/18 01:16)