[微積] 全微分不存在但偏微分存在

看板Math作者sobad5566 (好壞56)時間11年前 (2012/11/18 23:22)推噓3(3推 0噓 4→)

留言7則, 3人參與討論串1/1

Find f(x,y):R2→R s.t f(x,y) is not differentiablle at(a,b) but both ∂f/∂x ∂f/∂y exist at (a,b) 同學問的翻書好像有找到類似的問題但是看不太懂怎麼解釋= = -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 120.110.71.22

推

yuyumagic424

11/18 23:31, , 1^F

11/18 23:31, 1^F

→

yuyumagic424

11/18 23:31, , 2^F

11/18 23:31, 2^F

推

newversion

11/19 00:37, , 3^F

11/19 00:37, 3^F