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check digit

   Also found in: Encyclopedia, Wikipedia 0.03 sec.
check digit
n
(Electronics & Computer Science / Computer Science) Computing a digit derived from and appended to a string of data digits, used to detect corruption of the data string during transmission or transcription


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Using this bound, in Section 3 we obtain a bound on the number of parity check digits required to achieve the minimum Euclidean square distance at least [d.
The old number and letter combinations have gradually been replaced by the new ten-numbered unique personal identifier number, where the last number acts as a check digit to safeguard against typographical errors.
2 Methods for Credit Card Numbers Credit card numbers are an interesting case for FPE, as they carry a check digit at the end of the number that is calculated with the Luhn algorithm, which is a modified sum of the digits.
 
 
 
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