3 Replies - 1791 Views - Last Post: 02 December 2008 - 09:42 PM

#1 oldSwede   User is offline

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1/0 <> ERROR but becomes somthing like INF

Posted 02 December 2008 - 12:09 PM

I just wonder....

If you in VB.NET try to do somthing like integerVariable = 1/0 you will not get an error but there will be a result, represented with somthing like INF.

...is this good or even reasonalble?

From a mathematical point of view I'd assert that 1/0 is undefined and thus the "answer" INF is really bad.

Any thoughts?

Regards
/Jens

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Replies To: 1/0 <> ERROR but becomes somthing like INF

#2 William_Wilson   User is offline

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Re: 1/0 <> ERROR but becomes somthing like INF

Posted 02 December 2008 - 12:28 PM

Since Infinity is not a number, but rather a word/symbol to represent the idea of a large number, larger than any number which can be written, it is fine. All the language is doing, is catching the error and returning a value of INF, instead of an error or undefined. In complex mathematics infinity is more correct as 1/0 is impossible, so the answer is instead interpreted as a limit as the denominator approaches 0, which causes the answer to approach infinity.
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#3 cfoley   User is offline

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Re: 1/0 <> ERROR but becomes somthing like INF

Posted 02 December 2008 - 04:45 PM

What happens when you try and perform mathematical operations on INF in VB? Does it keep on returning INF or does it generate an error then?

I prefer my errors to be generated as early as possible. It makes debugging so much easier... and I can't think of a time when I would actually want INF instead of a division by zero error. It gets a thumbs down from me but at the same time, it's hardly the end of the world.
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#4 KYA   User is offline

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Re: 1/0 <> ERROR but becomes somthing like INF

Posted 02 December 2008 - 09:42 PM

If you want the limit of a diverging series maybe...


Calculus II exam on Friday! Whooo hooooooooo!
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