[Scilab-users] printf bug?
Stefan Du Rietz
sdr at durietz.se
Sat Aug 2 22:30:17 CEST 2014
Thank you, Leon,
it confirms that Scilab 5.4.1 handles it correctly.
But when I have LC_NUMERIC="en_DK.utf8" which means decimal comma, see
below, Scilab is in error:
-->msprintf("%0.2f", %pi)
ans =
3,14
-->msprintf("%0.2f", 3.1416)
ans =
3,14
Compare the correct handling in Python:
>>> "Pi with two decimals is %0.2f" % 3.1416
'Pi with two decimals is 3.14'
Can any of the developers comment on this, or shall I report a bug?
Regards
Stefan
stefan at Asus1:~$ uname -a
Linux Asus1 3.13.0-32-generic #57-Ubuntu SMP Tue Jul 15 03:51:12 UTC
2014 i686 i686 i686 GNU/Linux
stefan at Asus1:~$ locale
LANG=en_GB.UTF-8
LANGUAGE=en_GB:en
LC_CTYPE="en_DK.utf8"
LC_NUMERIC="en_DK.utf8"
LC_TIME="en_DK.utf8"
LC_COLLATE="en_DK.utf8"
LC_MONETARY="en_DK.utf8"
LC_MESSAGES="en_DK.utf8"
LC_PAPER="en_DK.utf8"
LC_NAME="en_DK.utf8"
LC_ADDRESS="en_DK.utf8"
LC_TELEPHONE="en_DK.utf8"
LC_MEASUREMENT="en_DK.utf8"
LC_IDENTIFICATION="en_DK.utf8"
LC_ALL=en_DK.utf8
On 2014-07-30 07:25, Leon Bevc wrote:
> Here is output from openSuse 13.1 and Scilab 5.4.1:
> ---------------------------
> lebevc at linux-xkf0:~> uname -a
> Linux linux-xkf0.site 3.15.3-1.g42bf625-desktop #1 SMP PREEMPT
> Wed Jul 2 09:23:08 UTC 2014 (42bf625) x86_64 x86_64 x86_64 GNU/Linux
> ---------------------------
> lebevc at linux-xkf0:~> locale
> LANG=sl_SI.UTF-8
> LC_CTYPE="sl_SI.UTF-8"
> LC_NUMERIC="sl_SI.UTF-8"
> LC_TIME="sl_SI.UTF-8"
> LC_COLLATE="sl_SI.UTF-8"
> LC_MONETARY="sl_SI.UTF-8"
> LC_MESSAGES="sl_SI.UTF-8"
> LC_PAPER="sl_SI.UTF-8"
> LC_NAME="sl_SI.UTF-8"
> LC_ADDRESS="sl_SI.UTF-8"
> LC_TELEPHONE="sl_SI.UTF-8"
> LC_MEASUREMENT="sl_SI.UTF-8"
> LC_IDENTIFICATION="sl_SI.UTF-8"
> LC_ALL=
> ---------------------------
> lebevc at linux-xkf0:~> printf "%0.2f\n" 3.1416
> bash: printf: 3.1416: invalid number
> 0,00
> lebevc at linux-xkf0:~> printf "%0.2f\n" 3,1416
> 3,14
>
> //-----Scilab---------------------
>
> -->ver
> Scilab Version: 5.4.1.1364497457
>
> -->x = 0.12345
> x =
> 0.12345
>
> -->xstr = msprintf("%0.2f", x)
> xstr =
> 0.12
>
>
> 2014-07-29 22:41 GMT+02:00 Stefan Du Rietz <sdr at durietz.se
> <mailto:sdr at durietz.se>>:
>
> Leon, Can you please try it with Scilab 5.4.1 under openSUSE? And
> can you show its Bash output from
> $ locale
>
> When I was running Scilab 5.4.1 under Xubuntu 12.04, printf worked
> OK, but also in Bash. So the question is: Why do you now get
> different results in Scilab and Bash?
>
> And *the important point*: Why should a mathematics program handle
> inputs differently from outputs?
>
> If one should handle decimal separators differently depending on
> the local language, it should be done consistently (as in Bash,
> even if I don't like it)!
>
> One could of course have special functions or arguments to present
> numbers in specific local formats.
>
> Stefan
>
>
>
> On 2014-07-29 19:41, Leon Bevc wrote:
>
> Strange...
>
> In this case I got the same result as you on Xubuntu and openSUSE:
>
> [ xUbuntu 14.04.1 - 32bit / Scilab 5.5.0 / LANG=sl_SI.UTF-8 ]
> lebevc at book-PC:~$ printf "%0.2f\n" 3.1416
> bash: printf: 3.1416: neveljavno število
> 0,00
> lebevc at book-PC:~$ printf "%0.2f\n" 3,1416
> 3,14
>
> ------------------------------__------------------------------__----------
> [ openSUSE 13.1-64bit ; Scilab 5.4.1]
> lebevc at linux-xkf0:~> printf "%0.2f\n" 3.1416
> bash: printf: 3.1416: invalid number
> 0,00
> lebevc at linux-xkf0:~> printf "%0.2f\n" 3,1416
> 3,14
>
> -->x = 0.6231166;
> -->xstr = msprintf("%0.2f", x)
> xstr =
> 0.62
>
>
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