On 5/24/06, brettholcomb@bellsouth.net <brettholcomb@bellsouth.net> wrote:

Did you try

scale=n

Where n is the number of digits after the decimal?  More in man bc.

>
> From: "Mike Huber" <michael.huber@gmail.com >
> 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:
>                .000001 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
>
>

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