Re: [Gnuplot-info] Increase number of digits

[ivana r. <iva...@mf...>]

Hi Patric,

are you sure that you wanna get the fit parameter with higher
precision that the error order?

Anyhow, the precision of gnuplot float variables is (under official
linux distribution) about 10e-15. You can print the variable via
sprintf/gprintf:

gnuplot> pr sprintf("%.20g",1+1e-15)
gnuplot> pr sprintf("%.20g",1+1e-16)

(Contrary to, e.g. gawk's OFMT, you can set global floating precision
for axis only.)

Sincerely

Iva


On 14/12/2017, Patrick Dupre <pd...@gm...> wrote:
> Hello,
>
> How can I increase the number of digits of the values provided
> by a fit?
> For example, I get
> x0              = 61281.3          +/- 5.43         (0.008861%)
>
> I would like to have 1 more digit on x0
>
> Thank.
>
> ===========================================================================
>  Patrick DUPRÉ                                 | | email: pd...@gm...
>  Laboratoire de Physico-Chimie de l'Atmosphère | |
>  Université du Littoral-Côte d'Opale           | |
>  Tel.  (33)-(0)3 28 23 76 12                   | | Fax: 03 28 65 82 44
>  189A, avenue Maurice Schumann                 | | 59140 Dunkerque, France
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