Talk:Detect division by zero: Difference between revisions
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::Maybe it's correct as multiple numbers are '''N'''ot '''a''' '''N'''umber :-)<br> (Being pedantic seems to be catching). --[[User:Paddy3118|Paddy3118]] 18:37, 18 June 2010 (UTC)
::: "In other words NaN is not a valid result for 0 / 0 but is a description of the character of those answers." --[[User:Rdm|Rdm]] 19:17, 18 June 2010 (UTC)
: I don't know what "mathematically incalculable" means, but I can testify that in pure mathematics, division by zero, regardless of the dividend, is undefined. Expressions such as <math>\lim_{x \to 0} \frac{x^2}{x}</math>, though they may appear to involve division by zero, actually don't. This expression, for instance, means "the number ''y'' such that for all positive ε there exists a positive δ such that for all <math>x \in (-\delta, \delta)</math>, <math>\left|\frac{x^2}{x} - y\right| < \epsilon</math>", i.e., 0. —[[User:Underscore|Underscore]] ([[User talk:Underscore|Talk]]) 01:04, 19 June 2010 (UTC)
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