作者henry9621205 (清心小子)
看板trans_math
标题[考古] 98台联第十
时间Sat Jul 3 19:01:08 2010
Let S be the surface parametrized by r(Θ,z) = 3sin2Θ i + 6(sinΘ)^2 j + z k
where 0=<Θ=<π Which of the following is equivalent to the surface
differential dσ ?
谢谢!!
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※ 发信站: 批踢踢实业坊(ptt.cc)
◆ From: 192.192.13.101
1F：推 guitarist326:向量微积分dS=|dr/d0crossdr/dz|d0dz 114.45.108.74 07/09 08:12
2F：→ guitarist326:dS=|dr/d0 Cross dr/dz| 114.45.108.74 07/09 08:12
3F：→ guitarist326: d0dz 114.45.108.74 07/09 08:13