1. %g format again
- Posted by rforno at tutopia.com
Nov 08, 2001
Rob:
Due to a problem with my ISP, I lost a bunch of messages from Euphoria, so I
don't know if you answered my last e-mail on the subject.
The question is:
Why the last item in the following line is printed with only 5 decimals?
printf(1, "%g %g %g %g %g\n", {5, 5.00, 5.100000, 5.1200000, 5.12345678})
5 5 5.1 5.12 5.12346
I think the main utility of the %g format is to show the minimum exact
representation of numbers, so you are not concerned to whether they are
integers or fractional, or how many digits comprise the fraction part.
Because of this problem, PRINT.E by Gabriel Boehme does not give the same
results as standard print().
2. Re: %g format again
rforno writes:
> Why the last item in the following line is printed with only 5 decimals?
>
> printf(1, "%g %g %g %g %g\n", {5, 5.00, 5.100000, 5.1200000, 5.12345678})
>
> 5 5 5.1 5.12 5.12346
I'm using C's %g to implement Euphoria's %g.
I guess 5 is the default chosen by the C implementers.
If you want more digits you can specify a field width and a precision.
Try some experiments.
Regards,
Rob Craig
Rapid Deployment Software
http://www.RapidEuphoria.com
