* format float numbers in luatex
@ 2009-10-24 16:59 batela
2009-10-25 8:07 ` Wolfgang Schuster
2009-10-26 10:48 ` Otared Kavian
0 siblings, 2 replies; 3+ messages in thread
From: batela @ 2009-10-24 16:59 UTC (permalink / raw)
To: mailing list for ConTeXt users
Dear Sirs,
I'm looking a way to format float numbers. For example
\ctxlua{text.print(sqrt(2))} give me 1.41421356237309504880 but i want
1.414.
Is there a way to format real numbers.
Note: I had tried \ctxlua{a = sqrt(a) ; aformat =
string.format("0.3%f", a) ; text.print(aformat)}
but that don't work because the % character
thanks a lot
Have a nice day
jorge
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!
maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage : http://www.pragma-ade.nl / http://tex.aanhet.net
archive : http://foundry.supelec.fr/projects/contextrev/
wiki : http://contextgarden.net
___________________________________________________________________________________
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: format float numbers in luatex
2009-10-24 16:59 format float numbers in luatex batela
@ 2009-10-25 8:07 ` Wolfgang Schuster
2009-10-26 10:48 ` Otared Kavian
1 sibling, 0 replies; 3+ messages in thread
From: Wolfgang Schuster @ 2009-10-25 8:07 UTC (permalink / raw)
To: mailing list for ConTeXt users
Am 24.10.2009 um 18:59 schrieb batela:
> Dear Sirs,
>
> I'm looking a way to format float numbers. For example \ctxlua
> {text.print(sqrt(2))} give me 1.41421356237309504880 but i want 1.414.
>
> Is there a way to format real numbers.
>
> Note: I had tried \ctxlua{a = sqrt(a) ; aformat = string.format
> ("0.3%f", a) ; text.print(aformat)}
>
> but that don't work because the % character
\ctxlua{text.sprint(string.format("0.3\%f",sqrt(2)))}
or
\ctxlua{text.sprint(string.format("0.3\letterpercent f",sqrt(2)))}
Wolfgang
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!
maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage : http://www.pragma-ade.nl / http://tex.aanhet.net
archive : http://foundry.supelec.fr/projects/contextrev/
wiki : http://contextgarden.net
___________________________________________________________________________________
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: format float numbers in luatex
2009-10-24 16:59 format float numbers in luatex batela
2009-10-25 8:07 ` Wolfgang Schuster
@ 2009-10-26 10:48 ` Otared Kavian
1 sibling, 0 replies; 3+ messages in thread
From: Otared Kavian @ 2009-10-26 10:48 UTC (permalink / raw)
To: mailing list for ConTeXt users
Hi Jorge,
Regarding your first question try this:
\starttext
The square root of 2 is \ctxlua{tex.print(math.sqrt(2))}\dots, but
usually the default value
\ctxlua{tex.print(math.floor(1000*math.sqrt(2))/1000)}
is considered to be a good approximation.
\stoptext
(There is also math.ceil)
Best regards: OK
On 24 oct. 2009, at 18:59, batela wrote:
>
> Dear Sirs,
>
> I'm looking a way to format float numbers. For example \ctxlua
> {text.print(sqrt(2))} give me 1.41421356237309504880 but i want 1.414.
>
> Is there a way to format real numbers.
>
> Note: I had tried \ctxlua{a = sqrt(a) ; aformat = string.format
> ("0.3%f", a) ; text.print(aformat)}
>
> but that don't work because the % character
>
> thanks a lot
>
> Have a nice day
>
> jorge
>
> ___________________________________________________________________________________
> If your question is of interest to others as well, please add an
> entry to the Wiki!
>
> maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
> webpage : http://www.pragma-ade.nl / http://tex.aanhet.net
> archive : http://foundry.supelec.fr/projects/contextrev/
> wiki : http://contextgarden.net
> ___________________________________________________________________________________
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!
maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage : http://www.pragma-ade.nl / http://tex.aanhet.net
archive : http://foundry.supelec.fr/projects/contextrev/
wiki : http://contextgarden.net
___________________________________________________________________________________
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2009-10-26 10:48 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2009-10-24 16:59 format float numbers in luatex batela
2009-10-25 8:07 ` Wolfgang Schuster
2009-10-26 10:48 ` Otared Kavian
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).