continuity - tans Watch

Kolya
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#21
Report 10 years ago
#21
(Original post by notnek)
Ok - I see your point. I'm sure last year I wouldn't have looked twice at either of them. I guess that's what university maths does to you.

What are your feelings about \frac{a}{0}=\infty ?
In a few scenarios in Analysis it is the convention to write \frac{a}{0} = \infty , and the result (intuitively) makes sense.
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Zhen Lin
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#22
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#22
(Original post by nota bene)
\displaystyle\lim_{x\to0}[\frac{a}{x}]=\infty and even this with 'equals' infinity is a bit dubious.
... unless you're working on the Riemann sphere or some other number system where infinities are unsigned.
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