> That would be 10.0011, wouldn't it?
> Still, rather neat.
>
> Hmm, actually 10.01 gives the same result.
>
> bisqwit@chii:~$ bc -l
> x=(1+sqrt(5))/2;
> x^1+x^-3+x^-4
> 1.99999999999999999999
> x^1+x^-2
> 1.99999999999999999999

Tut tut, youth of today, taking short cuts with numerical methods ... just 
do the algebra and you'll see they are both *exactly* 2, not this 
1.9999999999 mess ;-)

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