Re: TI-92 and infinite alternating sums - bug?
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Re: TI-92 and infinite alternating sums - bug?
Niklas Brunlid wrote:
>
> Possible bug?
>
> I just tried this: (1/5)*sum((-4/5)^k,k,0,infinity) and it returned
> a formula... approximation gives a non-real result.
>
> Yet this sum has a definite value of (1/-4)*(1/(1-(-4/5)))=-5/36
> according to our book...?
>
> Niklas Brunlid - http://www.efd.lth.se/~e96nbr
> PQF Quote follows:
>
> His philosophy was a mixture of three famous schools -- the Cynics, the
> Stoics and the Epicureans -- and summed up all three of them in his famous
> phrase, "You can't trust any bugger further than you can throw him, and
> there's nothing you can do about it, so let's have a drink."
> -- We meet Dydactylos the philosopher
> (Terry Pratchett, Small Gods)
ok..
You should read the TI-92 guidebook......
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