so, can't I get the whole number ending with ........0000000000000.1 ?
--- Ven 23/11/12, Jaime Villate <villate at fe.up.pt> ha scritto:
> Da: Jaime Villate <villate at fe.up.pt>
> Oggetto: Re: [Maxima] error adding 0.1
> A: "Antonio Lapira" <antoniolapira at yahoo.it>
> Cc: maxima at math.utexas.edu
> Data: Venerd? 23 novembre 2012, 14:34
> On 11/23/2012 02:20 PM, Antonio
> Lapira wrote:
> > If I try to do:
> > (%i10) 1000!+1;
> > it works, while if I try this, I get an error message,
> >
> > (%i10) 1000!+0.1;
> With the Lisp flavor that I'm using (SBCL) the error message
> tells you better what the problem is:
>
> ???Too large to be represented as a
> DOUBLE-FLOAT
>
> You're trying to add an integer to a double-float, which
> forces the large integer to be converted into a double
> float. The solution would be to use bigfloats or rational
> numbers, depending on what you are doing,
> ? 1000!+0.1b0;
> or
> ? 1000!+rat(0.1);
> or even
> ? 1000!+rationalize(0.1);
>
> See:? ? bfloat, ? rat, ? rationalize
>
> Jaime
>
>