[Gambas-user] Best ways to format float values

[Gianluigi]

Hi Nando,

good explanation, suitable for a guys with an elementary school preparation
like me.

Thank you very much

Gianluigi

2017-07-16 10:07 GMT+02:00 <nando_f at ...951...>:

> Rounding depends on what rounding you want.
> Most people think of 5/4 rounding.
> I prefer to round manually 5/4... 5 up, 4 down.
>
> Dim n as Float = 26.660166666666
>
> n = n * 100.  'n = 2666.0166666666   ' 2 decimal points rounding
> n = n + 0.5   'n = 2666.5166666666   ' 5/4 rounding*
> n = CLong(n)  'n = 2666
> n = n / 100.  'n = 26.66
>
>
> *If you wish to round down, do not add 0.5.  (add 0.0)
> *If you wish to round up, add 0.999999999
>
> If you wish to do 3 digits, then *1000 and /1000.
> This works for any type of rounding scheme and any reasonable number of
> digits.
>
> -Nando(Canada)
>
>
> --
> Open WebMail Project (http://openwebmail.org)
>
>
> ---------- Original Message -----------
> From: Gianluigi <bagonergi at ...626...>
> To: mailing list for gambas users <gambas-user at lists.sourceforge.net>
> Sent: Thu, 13 Jul 2017 12:30:23 +0200
> Subject: Re: [Gambas-user] Best ways to format float values
>
> > One thing that could be useful?
> >
> > Public Sub Main()
> >
> >   Dim n As Float = 26.6601666666666
> >   Dim b As Byte
> >
> >   b = Val(Mid(CStr(Frac(n)), 5, 1))
> >   Print Round(n, -2)
> >   If b >= 5 Then
> >     Print Round(n, -2)
> >   Else
> >     Print Round(n + 0.01, -2)
> >   Endif
> >
> > End
> >
> > Regards
> > Gianluigi
> >
> > 2017-07-13 7:39 GMT+02:00 alexchernoff <alexchernoff at ...67...>:
> >
> > > Peace to all,
> > >
> > > this might a bit silly but what is the best way to format float values
> like
> > > 26.6601666666666 into having two digits AND/OR  with rounding them?
> > >
> > > e.g.
> > >
> > > 26.6601666666666 becomes 26.66 shortened
> > > 26.6601666666666 becomes 26.67 rounded
> > >
> > > cheers!
> > >
> > >
> > >
> > >
> > >
> > > --
> > > View this message in context: http://gambas.8142.n7.nabble.
> > > com/Best-ways-to-format-float-values-tp59733.html
> > > Sent from the gambas-user mailing list archive at Nabble.com.
> > >
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