10-02-2010
Help with numbers
Say I have 3 sets of numbers: 043 5326 90432
and I want to select the digits that all 3 have in common!
so to answer my question 3 is the only digit that all 3 have in common!
Can this be done with 1 command in unix shell? or is it more complicated than I think it is?
I don't want an answer to my question but an idea on how any of you would start this and also I would like help depending on what questions I have!
Last edited by puttster; 10-02-2010 at 02:41 AM..
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LEARN ABOUT DEBIAN
algorithm::checkdigits::mxx_004
CheckDigits::MXX_004(3pm) User Contributed Perl Documentation CheckDigits::MXX_004(3pm)
NAME
CheckDigits::MXX_004 - compute check digits for VAT RN (AT)
SYNOPSIS
use Algorithm::CheckDigits;
$vat = CheckDigits('ustid_at');
if ($vat->is_valid('U13585627')) {
# do something
}
$cn = $vat->complete('U1358562');
# $cn = 'U13585627'
$cd = $vat->checkdigit('U13585627');
# $cd = '7'
$bn = $vat->basenumber('U13585627');
# $bn = 'U1358562'
DESCRIPTION
ALGORITHM
1. Beginning right all numbers before the check digit are weighted alternatively 1 and 2.
2. The total of the digits of all products is computed and then subtracted from 96.
3. The check digit is the sum of step 3 taken modulo 10.
METHODS
is_valid($number)
Returns true only if $number consists solely of numbers and the last digit is a valid check digit according to the algorithm given
above.
Returns false otherwise,
complete($number)
The check digit for $number is computed and concatenated to the end of $number.
Returns the complete number with check digit or '' if $number does not consist solely of digits and spaces.
basenumber($number)
Returns the basenumber of $number if $number has a valid check digit.
Return '' otherwise.
checkdigit($number)
Returns the checkdigit of $number if $number has a valid check digit.
Return '' otherwise.
EXPORT
None by default.
AUTHOR
Mathias Weidner, <mathias@weidner.in-bad-schmiedeberg.de>
SEE ALSO
perl, CheckDigits, www.pruefziffernberechnung.de.
perl v5.10.0 2008-05-17 CheckDigits::MXX_004(3pm)