Re: [gentoo-user] Getting BC not to truncate at the decimal point?
Mike Huber wrote: Hi, I'm just trying to do some quick calculations using bc, but the version installed through portage truncates on multiplication/division. It didn't used to do this 2 years ago when I was taking number theory, and there are no USE flags available for sys-devel/bc to change this. From the manpage: - The most basic element in bc is the number. Numbers are arbitrary precision numbers. This precision is both in the integer part and the fractional part. All numbers are represented internally in decimal and all computation is done in decimal. ( This version truncates results from divide and multiply operations.) There are two attributes of numbers, the length and the scale. The length is the total number of significant decimal digits in a number and the scale is the total number of decimal digits after the decimal point. For example: .01 has a length of 6 and scale of 6. 1935.000 has a length of 7 and a scale of 3. Anyone have any ideas? --Mike Hi, Try this. $ echo '1/5' | bc 0 $ echo '1/5' | bc -l .2000 I don't think bc has changed in a long time. Maybe you forgot the -l option. You can also control the scale explicitly like this. echo 'scale=3;1/5' | bc -l .200 Hope this helps. John Green -- gentoo-user@gentoo.org mailing list
Re: [SPAM] - [gentoo-user] Getting BC not to truncate at the decimal point? - Bayesian Filter detected spam
On 24/05/06, Harald Arnesen [EMAIL PROTECTED] wrote: Mike Huber [EMAIL PROTECTED] writes: Hi, I'm just trying to do some quick calculations using bc, but the version installed through portage truncates on multiplication/division. It didn't used to do this 2 years ago when I was taking number theory, and there are no USE flags available for sys-devel/bc to change this. From the manpage: $ bc bc 1.06 Copyright 1991-1994, 1997, 1998, 2000 Free Software Foundation, Inc. This is free software with ABSOLUTELY NO WARRANTY. For details type `warranty'. 101/3 33 $ bc -l bc 1.06 Copyright 1991-1994, 1997, 1998, 2000 Free Software Foundation, Inc. This is free software with ABSOLUTELY NO WARRANTY. For details type `warranty'. 101/3 33. -- Hilsen Harald. -- gentoo-user@gentoo.org mailing list Hi, I have always understood bc has always truncated (or at least through my general usage) whenever I have needed it to grow the decimal precision I use the scale= option: $ echo 101/3 | bc 33 $ echo scale=10; 101/3 | bc 33.66 $ echo scale=3; 101/3 | bc 33.666 $ echo 101/3 | bc -l 33. -l auto sets the scale to 20 (as per manpage). Same version of bc. Thanks Mark -- gentoo-user@gentoo.org mailing list
[gentoo-user] Getting BC not to truncate at the decimal point?
Hi, I'm just trying to do some quick calculations using bc, but the version installed through portage truncates on multiplication/division.It didn't used to do this 2 years ago when I was taking number theory, and there are no USE flags available for sys-devel/bc to change this.From the manpage: -The most basic element in bc is the number.Numbers are arbitrary precision numbers.This precision is both in theintegerpartandthe fractional part.All numbers are represented internally in decimal and all computation is done in decimal.( Thisversiontruncatesresults from divide and multiply operations.)There are two attributes of numbers, the length and the scale.The length is the total number of significantdecimaldigits in a number and the scale is the total number of decimal digits after the decimal point.For example: .01 has a length of 6 and scale of 6. 1935.000 has a length of 7 and a scale of 3.Anyone have any ideas? --Mike
Re: [gentoo-user] Getting BC not to truncate at the decimal point?
Did you try scale=n Where n is the number of digits after the decimal? More in man bc. From: Mike Huber [EMAIL PROTECTED] Date: 2006/05/24 Wed PM 12:48:29 EDT To: gentoo-user@lists.gentoo.org Subject: [gentoo-user] Getting BC not to truncate at the decimal point? Hi, I'm just trying to do some quick calculations using bc, but the version installed through portage truncates on multiplication/division. It didn't used to do this 2 years ago when I was taking number theory, and there are no USE flags available for sys-devel/bc to change this. From the manpage: - The most basic element in bc is the number. Numbers are arbitrary precision numbers. This precision is both in the integer part and the fractional part. All numbers are represented internally in decimal and all computation is done in decimal. (This version truncates results from divide and multiply operations.) There are two attributes of numbers, the length and the scale. The length is the total number of significant decimal digits in a number and the scale is the total number of decimal digits after the decimal point. For example: .01 has a length of 6 and scale of 6. 1935.000 has a length of 7 and a scale of 3. Anyone have any ideas? --Mike -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] Getting BC not to truncate at the decimal point?
duh, sorry, case of me not fully reading the manpage. I'll be sure and fully read before I send to the list. Thanks a lot,--MikeOn 5/24/06, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote: Did you tryscale=nWhere n is the number of digits after the decimal?More in man bc. From: Mike Huber [EMAIL PROTECTED] Date: 2006/05/24 Wed PM 12:48:29 EDT To: gentoo-user@lists.gentoo.org Subject: [gentoo-user] Getting BC not to truncate at the decimal point? Hi,I'm just trying to do some quick calculations using bc, but the version installed through portage truncates on multiplication/division.It didn't used to do this 2 years ago when I was taking number theory, and there are no USE flags available for sys-devel/bc to change this.From the manpage: - The most basic element in bc is the number.Numbers are arbitrary precision numbers.This precision is both in theintegerpartandthe fractional part.All numbers are represented internally in decimal and all computation is done in decimal.(Thisversiontruncatesresults from divide and multiply operations.)There are two attributes of numbers, the length and the scale.The length is the total number of significantdecimaldigits in a number and the scale is the total number of decimal digits after the decimal point.For example:.01 has a length of 6 and scale of 6.1935.000 has a length of 7 and a scale of 3. Anyone have any ideas? --Mike--gentoo-user@gentoo.org mailing list
Re: [SPAM] - [gentoo-user] Getting BC not to truncate at the decimal point? - Bayesian Filter detected spam
Mike Huber [EMAIL PROTECTED] writes: Hi, I'm just trying to do some quick calculations using bc, but the version installed through portage truncates on multiplication/division. It didn't used to do this 2 years ago when I was taking number theory, and there are no USE flags available for sys-devel/bc to change this. From the manpage: $ bc bc 1.06 Copyright 1991-1994, 1997, 1998, 2000 Free Software Foundation, Inc. This is free software with ABSOLUTELY NO WARRANTY. For details type `warranty'. 101/3 33 $ bc -l bc 1.06 Copyright 1991-1994, 1997, 1998, 2000 Free Software Foundation, Inc. This is free software with ABSOLUTELY NO WARRANTY. For details type `warranty'. 101/3 33. -- Hilsen Harald. -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] Getting BC not to truncate at the decimal point?
You're welcome. Don't feel bad - it took me a This thing can't be that dumb and a man page read to find out it was smarter than I thought G. On Wednesday May 24 2006 17:15, Mike Huber wrote: duh, sorry, case of me not fully reading the manpage. I'll be sure and fully read before I send to the list. Thanks a lot, --Mike On 5/24/06, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote: Did you try scale=n Where n is the number of digits after the decimal? More in man bc. From: Mike Huber [EMAIL PROTECTED] Date: 2006/05/24 Wed PM 12:48:29 EDT To: gentoo-user@lists.gentoo.org Subject: [gentoo-user] Getting BC not to truncate at the decimal point? Hi, I'm just trying to do some quick calculations using bc, but the version installed through portage truncates on multiplication/division. It didn't used to do this 2 years ago when I was taking number theory, and there are no USE flags available for sys-devel/bc to change this. From the manpage: - The most basic element in bc is the number. Numbers are arbitrary precision numbers. This precision is both in the integer part and the fractional part. All numbers are represented internally in decimal and all computation is done in decimal. (This version truncates results from divide and multiply operations.) There are two attributes of numbers, the length and the scale. The length is the total number of significant decimal digits in a number and the scale is the total number of decimal digits after the decimal point. For example: .01 has a length of 6 and scale of 6. 1935.000 has a length of 7 and a scale of 3. --- - Anyone have any ideas? --Mike -- gentoo-user@gentoo.org mailing list -- Brett I. Holcomb -- gentoo-user@gentoo.org mailing list
