I'm trying to figure out how to show that the limit of a function of two or more variables does not exist. I know that to do this we must show that the limit from 2 different pathways is not equal to the same thing, but, I want to know how to figure out what pathways to check, assuming you aren't using a graphing tool.(adsbygoogle = window.adsbygoogle || []).push({});

Similarly, how can we guarantee that all paths go to the same number and thereby show that the limit exists?

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# Homework Help: General question about the existence (or not) of 2+ var functions

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