So far, all I understand is that the definition proves that there's a value of f(x,y) as f(x,y) approaches (x(adsbygoogle = window.adsbygoogle || []).push({}); _{0},y_{0}) which is sufficiently close to but not exactly the value at f(x_{0},y_{0}). I am probably completely off... but I just don't understand the purpose of proving this. I also don't understand the purpose of the ε and the δ... which is pretty much the whole definition. Please help! D:

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# Epsilon Delta Definition of Limit

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