作者gs86137 (小飛魚)
看板trans_math
標題[多變] 極值
時間Fri May 14 09:21:39 2010
Determine the relative extrema and saddle points of
f(x,y) = x^3 + y^3 + 3xy - 2
--
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 140.128.194.71
1F:推 legstrong:直接偏微 然後用判別式解!? 112.105.84.62 05/14 11:40