Re: Output precision

[JuanPi]

On Sun, Apr 15, 2012 at 1:02 PM, Martin Helm <address@hidden> wrote:
> Am 15.04.2012 12:40, schrieb JuanPi:
>> x = 987654321.123456789;
> x is a double precision IEEE 754 floating point variable, you can show
> the precision by using eps.
> octave:1> x = 987654321.123456789;
> octave:2> x*eps
> ans =  2.1930e-07
>
> shows that you have to expect that at least the 7th digit after the
> decimal point is wrong and this is exactly what you see.
> For your other example you run into the typical situation that some
> values which can be represented exactly in decimal representation can
> not be represented exactly in binary representation.
>
>

:O
Thank you very much, I just realized that eps is relative!!! OMG, how
could I survive all this time :(


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