作者gs86137 (小飞鱼)
看板trans_math
标题[多变] 极值
时间Fri May 14 09:21:39 2010
Determine the relative extrema and saddle points of
f(x,y) = x^3 + y^3 + 3xy - 2
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1F：推 legstrong:直接偏微 然後用判别式解！？ 112.105.84.62 05/14 11:40