What's in a Barcode?: Duplicated Combinations (Special Issue of the Faculty of Human Sciences; Studies Presented to Prof. Motoo Mitsuda on his Retirement)
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概要
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This article explains how barcodes are read mathematically. One numeral is constructed from 7 modules in a barcode. Firstly, a counting method is presented through which the number of different characters which can be expressed is obtained. After touching upon formulae for permutations and combinations, duplicated combinations are expressed explicitly. The use of a modulus of 10 is mentioned with regard to the calculation of check digits.
- 大阪経済大学の論文
- 2009-03-31
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