18/07/01 18:54:51.71 UtMuEGV7.net
>>621
f(x,y)=
{1/x (y=x^2,x≠0)
{0 (y≠x^2)
{0 (x=0)
18/07/01 18:54:51.71 UtMuEGV7.net
>>621
f(x,y)=
{1/x (y=x^2,x≠0)
{0 (y≠x^2)
{0 (x=0)
18/07/01 18:54:51.71 UtMuEGV7.net
>>621
f(x,y)=
{1/x (y=x^2,x≠0)
{0 (y≠x^2)
{0 (x=0)