[Carpet] CarpetIOBasic defaults to fixed precision for values as small as 1e-8

[Jonathan Thornburg]

Hi,

In formatting INFO output, CarpetIOBasic defaults to printing values
in fixed format (C "%f") if they're between  real_min  and  real_max,
and in scientific format (C "%g") otherwise.  The default settings
(in the current-darcs version) are
  real_min = 1.0e-8
  real_max = 1.0e+3

It seems to me that it would be useful to raise  real_min  to 1.0e-4
or so.  Since the default fixed format has 7 digits after the decimal
point, this would ensure that at least 3 significant figures would
always be printed.  In contrast, the current-darcs default prints
some nonzero values (eg 2.0e-8) as "0.0000000", which I find quite
confusing.

comments?

ciao,

-- 
-- Jonathan Thornburg <jthorn at aei.mpg.de>      
   Max-Planck-Institut fuer Gravitationsphysik (Albert-Einstein-Institut),
   Golm, Germany, "Old Europe"     http://www.aei.mpg.de/~jthorn/home.html      
   "Washing one's hands of the conflict between the powerful and the
    powerless means to side with the powerful, not to be neutral."
                                      -- quote by Freire / poster by Oxfam