Fx(x,y)=y-e^x
Fy(x,y) =x+e^y
dy/dx =-Fx(x,y)/Fy(x,y)=(e^x-y)/(e^y+x)
两边对x求导得
y+xy'-e^x+e^y*y'=0
y' =(e^x-y)/(e^y+x)
一样的呀,你求导求错误了.
Fx(x,y)=y-e^x
Fy(x,y) =x+e^y
dy/dx =-Fx(x,y)/Fy(x,y)=(e^x-y)/(e^y+x)
两边对x求导得
y+xy'-e^x+e^y*y'=0
y' =(e^x-y)/(e^y+x)
一样的呀,你求导求错误了.