Algorithm::CheckDigits::M10_010 - compute check digits for Postscheckkonti (CH)

ALGORITHM 1 The sequence of digits is processed left to right. For the first digit we assume a carry forward of 0. 2 For each digit d(i) the carry forward cf(i) is the digit at the the position p in the sequence ( 0, 9, 4, 6, 8, 2, 7, 1, 3, 5 ), wher...

/Algorithm-CheckDigits-v1.3.2 - 16 May 2016 13:08:12 GMT

Algorithm::CheckDigits::MBase_001 - compute check digits for UPC (US)

ALGORITHM 1 Add all digits in odd-numbered positions. 2 Multiply the sum from step 1 with 3. 3 Add all digits in even-numbered positions. 4 Add the product from step 2 and the sum from step 3. 5 If the sum from step 4 is 0 modulo 10, the check digit ...

/Algorithm-CheckDigits-v1.3.2 - 16 May 2016 13:08:12 GMT

Algorithm::CheckDigits::MBase_002 - compute check digits for blood bags (DE), BZÜ (DE), VAT Registration Number (DE)

ALGORITHM 1 Start with values P = 10, S = 0. 2 Beginning left you do the following for all digits 1 S = (P + digit) modulo 10 2 If S is 0 then S = 10. 3 P = (2 * S) modulo 11 3 The check digit is (11 - P) modulo 10. METHODS is_valid(\$number) Returns ...

/Algorithm-CheckDigits-v1.3.2 - 16 May 2016 13:08:12 GMT

Algorithm::CheckDigits::MBase_003 - compute check digits for SICI (Serial Item and Contribution Identifier)

ALGORITHM 0 In the string describing the number all letters (A-Z) are replaced with numbers 10-35 accordingly. All other non-numbers are replaced by 36. 1 Beginning right the numbers at all odd positions are added. 2 The sum from step 1 is multiplied...

/Algorithm-CheckDigits-v1.3.2 - 16 May 2016 13:08:12 GMT

Algorithm::Damm - Calculate the Damm error correction check digit.

This module implements the Damm algorithm for calculating a check digit. You can find information about the algorithm by searching the web for "Damm ECC". In particular, see the "SEE ALSO" section (below)....

/Algorithm-Damm-1.001.002 - 21 Apr 2013 02:18:18 GMT

Algorithm::LUHN - Calculate the Modulus 10 Double Add Double checksum

This module calculates the Modulus 10 Double Add Double checksum, also known as the LUHN Formula. This algorithm is used to verify credit card numbers and Standard & Poor's security identifiers such as CUSIP's and CSIN's. You can find plenty of infor...

/Algorithm-LUHN-1.02 - 15 Nov 2015 20:57:42 GMT

Algorithm::LUHN_XS - Very Fast XS Version of the original Algorithm::LUHN

This module is an XS version of the original Perl Module Algorithm::LUHN, which was written by Tim Ayers. It should work exactly the same, only substantially faster. The supplied check_digit() routine is 100% compatible with the pure Perl Algorithm::...

/Algorithm-LUHN_XS-1.08 - 24 Dec 2018 16:25:56 GMT

Algorithm::CouponCode - Generate and validate 'CouponCode' strings

A 'Coupon Code' is made up of letters and numbers grouped into 4 character 'parts'. For example, a 3-part code might look like this: 1K7Q-CTFM-LMTC Coupon Codes are random codes which are easy for the recipient to type accurately into a web form. An ...

/Algorithm-CouponCode-1.005 - 25 Nov 2015 08:09:36 GMT

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