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hartnn
 one year ago
Best ResponseYou've already chosen the best response.2y= x it has "V" like shape, at x = 0 it is continuous , but not differentiable.

ikram002p
 one year ago
Best ResponseYou've already chosen the best response.0exactly...but how cud i find a function f(x,y) cont but not diff :)

amistre64
 one year ago
Best ResponseYou've already chosen the best response.1differentiable has to do with limits, if the limits is not the same from all directions, the limit is undefined.

amistre64
 one year ago
Best ResponseYou've already chosen the best response.1edit*** and the derivative of y=x is y' = x/x

ikram002p
 one year ago
Best ResponseYou've already chosen the best response.0in fact not necessary i mean if the limit exist its continues any way .. i wanna continues fun but not diff in f(x,y)

hartnn
 one year ago
Best ResponseYou've already chosen the best response.2means a 2 variable function example....hmm

amistre64
 one year ago
Best ResponseYou've already chosen the best response.1i recall one function i was limiting, but it was an implicit i think

amistre64
 one year ago
Best ResponseYou've already chosen the best response.1anything with a undefineable partial should suffice

hartnn
 one year ago
Best ResponseYou've already chosen the best response.2yeah, not sure about this, but try f(x,y) = xy

amistre64
 one year ago
Best ResponseYou've already chosen the best response.1http://www.wolframalpha.com/input/?i=%28x%2By1%29%2F%28%7Cx%2By%7C1%29 heres a nice one

amistre64
 one year ago
Best ResponseYou've already chosen the best response.1xy reminds me of one of those paper folded beaks ....

ikram002p
 one year ago
Best ResponseYou've already chosen the best response.0it sounds good but i have to check my txt book to use the definition to know if its not diff

amistre64
 one year ago
Best ResponseYou've already chosen the best response.1im assuming "not differentiable" means that for some x in R, the derivative does not exist.

amistre64
 one year ago
Best ResponseYou've already chosen the best response.1Derelict function comes to mind for some reason as well

ikram002p
 one year ago
Best ResponseYou've already chosen the best response.0yes its correct :) but the one u gave is also not continues there is a thm if the fun is diff then its continues ima give a counter example for the oposite situation like give an example for fun is cont but not diff

ikram002p
 one year ago
Best ResponseYou've already chosen the best response.0@hartnn gave a good example but one variable im gonna to check if xy is true

amistre64
 one year ago
Best ResponseYou've already chosen the best response.1http://www.wolframalpha.com/input/?i=%7Csin%28x%2By%29%7C this one is rather nice looking to me

sdfasfasdfasdfasdfafd
 one year ago
Best ResponseYou've already chosen the best response.0im sorry for barging on your question ikram

ikram002p
 one year ago
Best ResponseYou've already chosen the best response.0it works !! both xy sin(x+y) thx both @hartnn @amistre64
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