Re: [微分] 一題微分

[GayerDior ( 宗教系 川詩佛)]

※ 引述《graydevils (why, or why not)》之銘言：
:      xy
: let e  +xy=7 , 則dy/dx=?
: 笨笨的想用移項...不過會微不出來

implicit differential.

        xy
(y+xy')e   + y + xy' = 0


dy/dx= - y/x

--
                            ▅▃_
                         ○ ◣"  ◤
                           ~◤  ▊
                             ■υ◣...


--
※ 發信站: 批踢踢實業坊(ptt.cc) 
◆ From: 61.229.161.126
推 l71cm:這裡是 "differentiation"
→ GayerDior:謝謝更正XDDD