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MU
Joined: 24 Aug 2005
Posts: 13647
Location: Karlsruhe, Germany
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 Posted: Mon 23 Jan 2006, 14:41 Post subject:
 calculator bc - scientific comandline-calculator |
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This is a scientific comandline-calculator.
manual:
http://www.gnu.org/software/bc/manual/bc.html
You can run it from the dotpups-menu.
That opens a yellow xterm, simply enter
2+2
there.
Download (48 kb)
http://dotpups.de/dotpups/System_Utilities/bc-calculator.pup
It requires libreadline4, if you don't have it yet, get it here:
http://noforum.de/dotpups/libreadline-so-4.pup (82 kb)
Mark
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GuestToo
Puppy Master
Joined: 04 May 2005
Posts: 4078
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| Posted: Mon 23 Jan 2006, 23:36 Post subject:
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i have a BC and DC package on my dotpups page
* BC is a language that supports arbitrary precision numbers with interactive execution of statements. There are some similarities in the syntax to the C programming language.
* DC is a reverse-polish desk calculator which supports unlimited precision arithmetic. It also allows you to define and call macros.
now you have a choice of packages (but my package is just the command line utilities)
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MU
Joined: 24 Aug 2005
Posts: 13647
Location: Karlsruhe, Germany
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| Posted: Mon 23 Jan 2006, 23:40 Post subject:
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oh, I did not check that 
Mark
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BarryK
Puppy Master
Joined: 09 May 2005
Posts: 8703
Location: Perth, Western Australia
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| Posted: Tue 24 Jan 2006, 21:20 Post subject:
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dc is already in puppy.
comes with busybox.
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GuestToo
Puppy Master
Joined: 04 May 2005
Posts: 4078
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| Posted: Tue 24 Jan 2006, 22:03 Post subject:
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| Quote: | dc is already in puppy.
comes with busybox. |
yes, i know that .. but this is the FULL version, there is a difference
i like DC because it reminds me of HP calculators and Forth
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BarryK
Puppy Master
Joined: 09 May 2005
Posts: 8703
Location: Perth, Western Australia
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| Posted: Wed 25 Jan 2006, 04:44 Post subject:
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Ah yes, I bought an HP-45 when I was a student.
I was the only one in the class with a electronic calculator.
Before that I used a slide rule.
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postfs1
Joined: 27 Mar 2010
Posts: 820
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| Posted: Tue 07 Aug 2012, 14:18 Post subject:
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PI 
| Code: | | printf "%.9f\n" "`Calculator="103993/33102" ; echo "scale=10; $Calculator"|bc`" |
Edit:
| Code: | | printf "%.9f\n" "`Calculator=\"103993/33102\" ; echo \"scale=10; $Calculator\"|bc`" |
| Description |
Quirky Linux - 1.40 |
| Filesize |
88.3 KB |
| Viewed |
613 Time(s) |
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Last edited by postfs1 on Tue 07 Aug 2012, 22:04; edited 2 times in total
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L18L
Joined: 19 Jun 2010
Posts: 3431
Location: www.eussenheim.de/
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| Posted: Tue 07 Aug 2012, 15:16 Post subject:
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| postfs1 wrote: | PI
| Code: | | printf "%.9f\n" "`Calculator="103993/33102" ; echo "scale=10; $Calculator"|bc`" |
|
 
| my console answered and wrote: | bash: printf: 3.1415926530: invalid number
0,000000000
# |
| my console wrote: | # echo "scale=10; 103993/33102" | bc
3.1415926530
#
# echo "scale=99; 103993/33102" | bc
3.141592653011902604072261494773729684007008639961331641592653011902604072261494773729684007008639961
# |
---------------------------------------
edit
Note, my post was not about precision of PI but only demonstrating a calculation without error messages
Last edited by L18L on Thu 09 Aug 2012, 16:13; edited 1 time in total
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Burunduk
Joined: 21 Aug 2011
Posts: 63
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| Posted: Tue 07 Aug 2012, 17:42 Post subject:
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https://en.wikipedia.org/wiki/Bc_programming_language#Calculating_Pi_to_10000_places
| Code: | | echo "scale=100; 4*a(1)" | bc -l |
-----
http://x-bc.sourceforge.net/extensions_bc.html
| Quote: | | - contains functions of trigonometry, exponential functions, functions of number theory and some mathematical constants... |
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postfs1
Joined: 27 Mar 2010
Posts: 820
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| Posted: Tue 07 Aug 2012, 22:06 Post subject:
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| Code: | | printf "%.9f\n" "`echo -e 'scale\nscale=20\n4*a(1)'|bc -l`" |
!ATTENTION! ===>
http://en.wikipedia.org/wiki/Rounding#Round-to-even_method
| Code: | | printf "%.1f\n" "74.35" |
Gives: 74.3
Sometimes must be: 74.3
Sometimes must be: 74.4 #Round half to even
| Code: | | printf "%.1f\n" "74.25" |
Gives: 74.2
Sometimes must be: 74.2 #Round half to even
Sometimes must be: 74.3
http://brskari.wordpress.com/2011/04/23/rounding-values-in-bc/
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Burunduk
Joined: 21 Aug 2011
Posts: 63
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| Posted: Wed 08 Aug 2012, 10:56 Post subject:
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Lots of functions here: http://phodd.net/gnu-bc/
Download funcs.bc
| Code: | | echo "round(4.35,.1)" | bc -l /path/to/funcs.bc |
Results in 4.4 (round half up)
-----
| L18L's console wrote: | | bash: printf: 3.1415926530: invalid number |
3.14 is invalid number... in Germany (for printf but not for bc): 3,14 or LANG=C ist gut!
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postfs1
Joined: 27 Mar 2010
Posts: 820
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| Posted: Wed 08 Aug 2012, 13:20 Post subject:
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- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Rounding ===>
echo 'round(1731.543534, .001)'|bc -l /archive/Command_Line_Calculator--bc/code/funcs.bc
#OUTPUT: 1731.544
echo 'round(1731.548534, .001)'|bc -l /archive/Command_Line_Calculator--bc/code/funcs.bc
#OUTPUT: 1731.549
echo 'round(1731.543534, 1)'|bc -l /archive/Command_Line_Calculator--bc/code/funcs.bc
#OUTPUT: 1732
echo 'round(1732.543534, 1)'|bc -l /archive/Command_Line_Calculator--bc/code/funcs.bc
#OUTPUT: 1733
- - - - - - - - - - - - - - - - - - - - -
- - - - - - - - - - - - - - - - - - - - -
echo 'round(1731.543534, .002)'|bc -l /archive/Command_Line_Calculator--bc/code/funcs.bc
#OUTPUT: 1731.544
echo 'round(1731.548534, .002)'|bc -l /archive/Command_Line_Calculator--bc/code/funcs.bc
#OUTPUT: 1731.548
echo 'round(1731.543534, 2)'|bc -l /archive/Command_Line_Calculator--bc/code/funcs.bc
#OUTPUT: 1732
echo 'round(1732.548534, 2)'|bc -l /archive/Command_Line_Calculator--bc/code/funcs.bc
#OUTPUT: 1732
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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postfs1
Joined: 27 Mar 2010
Posts: 820
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| Posted: Thu 09 Aug 2012, 04:59 Post subject:
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| Quote: |
Install_functions_for_Calculator--bc.sh
| Code: |
#!/bin/bash
#
#SRC: http://phodd.net/gnu-bc/phodd.net-gnu-bc-201206232000+pdb+html.zip
#
mkdir -p /usr/share/bc ;
cd /usr/share/bc ;
curl -C - -O file:///mnt/sr0/Y2012-M08-D09/Programs_for_Quirky-Linux-1.40/Packed_files/Command_Line_Calculator--bc/phodd.net-gnu-bc-201206232000+pdb+html.zip ;
unzip -j phodd.net-gnu-bc-201206232000+pdb+html.zip code/funcs.bc ;
rm /usr/share/bc/phodd.net-gnu-bc-201206232000+pdb+html.zip ;
#
#
#RESULT: bc -l /usr/share/bc/funcs.bc
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Edit: 2012, aug 18.
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Theme(not a question): "Round half to even" rounding, isn't it?
| Quote: |
9970/1048576=.01
| Code: |
echo 'round('"`echo "scale=25 ; 9970/1048576"|bc -l /usr/share/bc/funcs.bc|tee /var/tmp/.bc`"', '"`cat /var/tmp/.bc|cut -d. -f2-|cut -c 25|sed "s/[0-46-9]/.000000000000000000000001/"|sed "s/5/.000000000000000000000002/"`"')' |bc -l /usr/share/bc/funcs.bc|cat|tee /var/tmp/.bc ;
echo 'round('"`cat /var/tmp/.bc`"', '"`cat /var/tmp/.bc|cut -d. -f2-|cut -c 24|sed "s/[0-46-9]/.00000000000000000000001/"|sed "s/5/.00000000000000000000002/"`"')' |bc -l /usr/share/bc/funcs.bc|cat|tee /var/tmp/.bc ;
echo 'round('"`cat /var/tmp/.bc`"', '"`cat /var/tmp/.bc|cut -d. -f2-|cut -c 23|sed "s/[0-46-9]/.0000000000000000000001/"|sed "s/5/.0000000000000000000002/"`"')' |bc -l /usr/share/bc/funcs.bc|cat|tee /var/tmp/.bc ;
echo 'round('"`cat /var/tmp/.bc`"', '"`cat /var/tmp/.bc|cut -d. -f2-|cut -c 22|sed "s/[0-46-9]/.000000000000000000001/"|sed "s/5/.000000000000000000002/"`"')' |bc -l /usr/share/bc/funcs.bc|cat|tee /var/tmp/.bc ;
echo 'round('"`cat /var/tmp/.bc`"', '"`cat /var/tmp/.bc|cut -d. -f2-|cut -c 21|sed "s/[0-46-9]/.00000000000000000001/"|sed "s/5/.00000000000000000002/"`"')' |bc -l /usr/share/bc/funcs.bc|cat|tee /var/tmp/.bc ;
echo 'round('"`cat /var/tmp/.bc`"', '"`cat /var/tmp/.bc|cut -d. -f2-|cut -c 20|sed "s/[0-46-9]/.0000000000000000001/"|sed "s/5/.0000000000000000002/"`"')' |bc -l /usr/share/bc/funcs.bc|cat|tee /var/tmp/.bc ;
echo 'round('"`cat /var/tmp/.bc`"', '"`cat /var/tmp/.bc|cut -d. -f2-|cut -c 19|sed "s/[0-46-9]/.000000000000000001/"|sed "s/5/.000000000000000002/"`"')' |bc -l /usr/share/bc/funcs.bc|cat|tee /var/tmp/.bc ;
echo 'round('"`cat /var/tmp/.bc`"', '"`cat /var/tmp/.bc|cut -d. -f2-|cut -c 18|sed "s/[0-46-9]/.00000000000000001/"|sed "s/5/.00000000000000002/"`"')' |bc -l /usr/share/bc/funcs.bc|cat|tee /var/tmp/.bc ;
echo 'round('"`cat /var/tmp/.bc`"', '"`cat /var/tmp/.bc|cut -d. -f2-|cut -c 17|sed "s/[0-46-9]/.0000000000000001/"|sed "s/5/.0000000000000002/"`"')' |bc -l /usr/share/bc/funcs.bc|cat|tee /var/tmp/.bc ;
echo 'round('"`cat /var/tmp/.bc`"', '"`cat /var/tmp/.bc|cut -d. -f2-|cut -c 16|sed "s/[0-46-9]/.000000000000001/"|sed "s/5/.000000000000002/"`"')' |bc -l /usr/share/bc/funcs.bc|cat|tee /var/tmp/.bc ;
echo 'round('"`cat /var/tmp/.bc`"', '"`cat /var/tmp/.bc|cut -d. -f2-|cut -c 15|sed "s/[0-46-9]/.00000000000001/"|sed "s/5/.00000000000002/"`"')' |bc -l /usr/share/bc/funcs.bc|cat|tee /var/tmp/.bc ;
echo 'round('"`cat /var/tmp/.bc`"', '"`cat /var/tmp/.bc|cut -d. -f2-|cut -c 14|sed "s/[0-46-9]/.0000000000001/"|sed "s/5/.0000000000002/"`"')' |bc -l /usr/share/bc/funcs.bc|cat|tee /var/tmp/.bc ;
echo 'round('"`cat /var/tmp/.bc`"', '"`cat /var/tmp/.bc|cut -d. -f2-|cut -c 13|sed "s/[0-46-9]/.000000000001/"|sed "s/5/.000000000002/"`"')' |bc -l /usr/share/bc/funcs.bc|cat|tee /var/tmp/.bc ;
echo 'round('"`cat /var/tmp/.bc`"', '"`cat /var/tmp/.bc|cut -d. -f2-|cut -c 12|sed "s/[0-46-9]/.00000000001/"|sed "s/5/.00000000002/"`"')' |bc -l /usr/share/bc/funcs.bc|cat|tee /var/tmp/.bc ;
echo 'round('"`cat /var/tmp/.bc`"', '"`cat /var/tmp/.bc|cut -d. -f2-|cut -c 11|sed "s/[0-46-9]/.0000000001/"|sed "s/5/.0000000002/"`"')' |bc -l /usr/share/bc/funcs.bc|cat|tee /var/tmp/.bc ;
echo 'round('"`cat /var/tmp/.bc`"', '"`cat /var/tmp/.bc|cut -d. -f2-|cut -c 10|sed "s/[0-46-9]/.000000001/"|sed "s/5/.000000002/"`"')' |bc -l /usr/share/bc/funcs.bc|cat|tee /var/tmp/.bc ;
echo 'round('"`cat /var/tmp/.bc`"', '"`cat /var/tmp/.bc|cut -d. -f2-|cut -c 9|sed "s/[0-46-9]/.00000001/"|sed "s/5/.00000002/"`"')' |bc -l /usr/share/bc/funcs.bc|cat|tee /var/tmp/.bc ;
echo 'round('"`cat /var/tmp/.bc`"', '"`cat /var/tmp/.bc|cut -d. -f2-|cut -c 8|sed "s/[0-46-9]/.0000001/"|sed "s/5/.0000002/"`"')' |bc -l /usr/share/bc/funcs.bc|cat|tee /var/tmp/.bc ;
echo 'round('"`cat /var/tmp/.bc`"', '"`cat /var/tmp/.bc|cut -d. -f2-|cut -c 7|sed "s/[0-46-9]/.000001/"|sed "s/5/.000002/"`"')' |bc -l /usr/share/bc/funcs.bc|cat|tee /var/tmp/.bc ;
echo 'round('"`cat /var/tmp/.bc`"', '"`cat /var/tmp/.bc|cut -d. -f2-|cut -c 6|sed "s/[0-46-9]/.00001/"|sed "s/5/.00002/"`"')' |bc -l /usr/share/bc/funcs.bc|cat|tee /var/tmp/.bc ;
echo 'round('"`cat /var/tmp/.bc`"', '"`cat /var/tmp/.bc|cut -d. -f2-|cut -c 5|sed "s/[0-46-9]/.0001/"|sed "s/5/.0002/"`"')' |bc -l /usr/share/bc/funcs.bc|cat|tee /var/tmp/.bc ;
echo 'round('"`cat /var/tmp/.bc`"', '"`cat /var/tmp/.bc|cut -d. -f2-|cut -c 4|sed "s/[0-46-9]/.001/"|sed "s/5/.002/"`"')' |bc -l /usr/share/bc/funcs.bc|cat|tee /var/tmp/.bc ;
echo 'round('"`cat /var/tmp/.bc`"', '"`cat /var/tmp/.bc|cut -d. -f2-|cut -c 3|sed "s/[0-46-9]/.01/"|sed "s/5/.02/"`"')' |bc -l /usr/share/bc/funcs.bc|cat|tee /var/tmp/.bc ;
rm /var/tmp/.bc
|
Edit: 2012, aug 11.
|
| Quote: |
PI=3.14
| Code: |
echo -n >/var/tmp/.bc ;
echo 'round('"`echo -e "scale\nscale=26\n4*a(1)"|bc -l /usr/share/bc/funcs.bc|tail -n 1|tee /var/tmp/.bc`"', '"`cat /var/tmp/.bc|cut -d. -f2-|cut -c 26|sed "s/[0-46-9]/.0000000000000000000000001/"|sed "s/5/.0000000000000000000000002/"`"')' |bc -l /usr/share/bc/funcs.bc|cat|tee /var/tmp/.bc ;
echo 'round('"`cat /var/tmp/.bc`"', '"`cat /var/tmp/.bc|cut -d. -f2-|cut -c 25|sed "s/[0-46-9]/.000000000000000000000001/"|sed "s/5/.000000000000000000000002/"`"')' |bc -l /usr/share/bc/funcs.bc|cat|tee /var/tmp/.bc ;
echo 'round('"`cat /var/tmp/.bc`"', '"`cat /var/tmp/.bc|cut -d. -f2-|cut -c 24|sed "s/[0-46-9]/.00000000000000000000001/"|sed "s/5/.00000000000000000000002/"`"')' |bc -l /usr/share/bc/funcs.bc|cat|tee /var/tmp/.bc ;
echo 'round('"`cat /var/tmp/.bc`"', '"`cat /var/tmp/.bc|cut -d. -f2-|cut -c 23|sed "s/[0-46-9]/.0000000000000000000001/"|sed "s/5/.0000000000000000000002/"`"')' |bc -l /usr/share/bc/funcs.bc|cat|tee /var/tmp/.bc ;
echo 'round('"`cat /var/tmp/.bc`"', '"`cat /var/tmp/.bc|cut -d. -f2-|cut -c 22|sed "s/[0-46-9]/.000000000000000000001/"|sed "s/5/.000000000000000000002/"`"')' |bc -l /usr/share/bc/funcs.bc|cat|tee /var/tmp/.bc ;
echo 'round('"`cat /var/tmp/.bc`"', '"`cat /var/tmp/.bc|cut -d. -f2-|cut -c 21|sed "s/[0-46-9]/.00000000000000000001/"|sed "s/5/.00000000000000000002/"`"')' |bc -l /usr/share/bc/funcs.bc|cat|tee /var/tmp/.bc ;
echo 'round('"`cat /var/tmp/.bc`"', '"`cat /var/tmp/.bc|cut -d. -f2-|cut -c 20|sed "s/[0-46-9]/.0000000000000000001/"|sed "s/5/.0000000000000000002/"`"')' |bc -l /usr/share/bc/funcs.bc|cat|tee /var/tmp/.bc ;
echo 'round('"`cat /var/tmp/.bc`"', '"`cat /var/tmp/.bc|cut -d. -f2-|cut -c 19|sed "s/[0-46-9]/.000000000000000001/"|sed "s/5/.000000000000000002/"`"')' |bc -l /usr/share/bc/funcs.bc|cat|tee /var/tmp/.bc ;
#
#
#
echo 'round('"`cat /var/tmp/.bc`"', '"`cat /var/tmp/.bc|cut -d. -f2-|cut -c 18|sed "s/[0-46-9]/.00000000000000001/"|sed "s/5/.00000000000000002/"`"')' |bc -l /usr/share/bc/funcs.bc|cat|tee /var/tmp/.bc ;
echo 'round('"`cat /var/tmp/.bc`"', '"`cat /var/tmp/.bc|cut -d. -f2-|cut -c 17|sed "s/[0-46-9]/.0000000000000001/"|sed "s/5/.0000000000000002/"`"')' |bc -l /usr/share/bc/funcs.bc|cat|tee /var/tmp/.bc ;
echo 'round('"`cat /var/tmp/.bc`"', '"`cat /var/tmp/.bc|cut -d. -f2-|cut -c 16|sed "s/[0-46-9]/.000000000000001/"|sed "s/5/.000000000000002/"`"')' |bc -l /usr/share/bc/funcs.bc|cat|tee /var/tmp/.bc ;
echo 'round('"`cat /var/tmp/.bc`"', '"`cat /var/tmp/.bc|cut -d. -f2-|cut -c 15|sed "s/[0-46-9]/.00000000000001/"|sed "s/5/.00000000000002/"`"')' |bc -l /usr/share/bc/funcs.bc|cat|tee /var/tmp/.bc ;
echo 'round('"`cat /var/tmp/.bc`"', '"`cat /var/tmp/.bc|cut -d. -f2-|cut -c 14|sed "s/[0-46-9]/.0000000000001/"|sed "s/5/.0000000000002/"`"')' |bc -l /usr/share/bc/funcs.bc|cat|tee /var/tmp/.bc ;
echo 'round('"`cat /var/tmp/.bc`"', '"`cat /var/tmp/.bc|cut -d. -f2-|cut -c 13|sed "s/[0-46-9]/.000000000001/"|sed "s/5/.000000000002/"`"')' |bc -l /usr/share/bc/funcs.bc|cat|tee /var/tmp/.bc ;
echo 'round('"`cat /var/tmp/.bc`"', '"`cat /var/tmp/.bc|cut -d. -f2-|cut -c 12|sed "s/[0-46-9]/.00000000001/"|sed "s/5/.00000000002/"`"')' |bc -l /usr/share/bc/funcs.bc|cat|tee /var/tmp/.bc ;
echo 'round('"`cat /var/tmp/.bc`"', '"`cat /var/tmp/.bc|cut -d. -f2-|cut -c 11|sed "s/[0-46-9]/.0000000001/"|sed "s/5/.0000000002/"`"')' |bc -l /usr/share/bc/funcs.bc|cat|tee /var/tmp/.bc ;
#
#
#
echo 'round('"`cat /var/tmp/.bc`"', '"`cat /var/tmp/.bc|cut -d. -f2-|cut -c 10|sed "s/[0-46-9]/.000000001/"|sed "s/5/.000000002/"`"')' |bc -l /usr/share/bc/funcs.bc|cat|tee /var/tmp/.bc ;
echo 'round('"`cat /var/tmp/.bc`"', '"`cat /var/tmp/.bc|cut -d. -f2-|cut -c 9|sed "s/[0-46-9]/.00000001/"|sed "s/5/.00000002/"`"')' |bc -l /usr/share/bc/funcs.bc|cat|tee /var/tmp/.bc ;
echo 'round('"`cat /var/tmp/.bc`"', '"`cat /var/tmp/.bc|cut -d. -f2-|cut -c 8|sed "s/[0-46-9]/.0000001/"|sed "s/5/.0000002/"`"')' |bc -l /usr/share/bc/funcs.bc|cat|tee /var/tmp/.bc ;
echo 'round('"`cat /var/tmp/.bc`"', '"`cat /var/tmp/.bc|cut -d. -f2-|cut -c 7|sed "s/[0-46-9]/.000001/"|sed "s/5/.000002/"`"')' |bc -l /usr/share/bc/funcs.bc|cat|tee /var/tmp/.bc ;
echo 'round('"`cat /var/tmp/.bc`"', '"`cat /var/tmp/.bc|cut -d. -f2-|cut -c 6|sed "s/[0-46-9]/.00001/"|sed "s/5/.00002/"`"')' |bc -l /usr/share/bc/funcs.bc|cat|tee /var/tmp/.bc ;
echo 'round('"`cat /var/tmp/.bc`"', '"`cat /var/tmp/.bc|cut -d. -f2-|cut -c 5|sed "s/[0-46-9]/.0001/"|sed "s/5/.0002/"`"')' |bc -l /usr/share/bc/funcs.bc|cat|tee /var/tmp/.bc ;
echo 'round('"`cat /var/tmp/.bc`"', '"`cat /var/tmp/.bc|cut -d. -f2-|cut -c 4|sed "s/[0-46-9]/.001/"|sed "s/5/.002/"`"')' |bc -l /usr/share/bc/funcs.bc|cat|tee /var/tmp/.bc ;
echo 'round('"`cat /var/tmp/.bc`"', '"`cat /var/tmp/.bc|cut -d. -f2-|cut -c 3|sed "s/[0-46-9]/.01/"|sed "s/5/.02/"`"')' |bc -l /usr/share/bc/funcs.bc|cat|tee /var/tmp/.bc ;
rm /var/tmp/.bc
#
#
#
|
Edit: 2012, aug 11.
|
A script's content can be copied into text editor by means of <Quote> mode.
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