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  2. Check digit - Wikipedia

    en.wikipedia.org/wiki/Check_digit

    Take the remainder of the result divided by 10 (i.e. the modulo 10 operation). If the remainder is equal to 0 then use 0 as the check digit, and if not 0 subtract the remainder from 10 to derive the check digit. A GS1 check digit calculator and detailed documentation is online at GS1's website. [5] Another official calculator page shows that ...

  3. Code 39 - Wikipedia

    en.wikipedia.org/wiki/Code_39

    Take the value (0 through 42) of each character in the barcode excluding start and stop codes. Sum the values. Divide the result by 10 (for Mod 10 check digit) or by 43 (for Mod 43 check digit). The remainder is the value of the checksum character to be appended.

  4. Unicode input - Wikipedia

    en.wikipedia.org/wiki/Unicode_input

    The KCharSelect character mapping tool shown displaying a subset of the Unicode Mathematical Operators The Unicode logo. Unicode input is method to add a specific Unicode character to a computer file; it is a common way to input characters not directly supported by a physical keyboard.

  5. Modulo - Wikipedia

    en.wikipedia.org/wiki/Modulo

    In computing, the modulo operation returns the remainder or signed remainder of a division, after one number is divided by another, called the modulus of the operation. Given two positive numbers a and n, a modulo n (often abbreviated as a mod n) is the remainder of the Euclidean division of a by n, where a is the dividend and n is the divisor. [1]

  6. Help:References and page numbers - Wikipedia

    en.wikipedia.org/wiki/Help:References_and_page...

    When citing sources in Wikipedia articles, the citation must clearly support the material as presented in the article, per the verifiability policy.It helps to give a page number or page range—or a section, chapter, or other division of the source—because then the reader does not have to carefully review the whole cited source to find the relevant supporting evidence, which promotes ...

  7. Delimiter-separated values - Wikipedia

    en.wikipedia.org/wiki/Delimiter-separated_values

    A delimited text file is a text file used to store data, in which each line represents a single book, company, or other thing, and each line has fields separated by the delimiter. [3] Compared to the kind of flat file that uses spaces to force every field to the same width, a delimited file has the advantage of allowing field values of any length.

  8. Text file - Wikipedia

    en.wikipedia.org/wiki/Text_file

    A text file exists stored as data within a computer file system. In operating systems such as CP/M, where the operating system does not keep track of the file size in bytes, the end of a text file is denoted by placing one or more special characters, known as an end-of-file (EOF) marker, as

  9. End-of-file - Wikipedia

    en.wikipedia.org/wiki/End-of-file

    By default, the driver converts a Control-D character at the start of a line into an end-of-file indicator. To insert an actual Control-D (ASCII 04) character into the input stream, the user precedes it with a "quote" command character (usually Control-V). AmigaDOS is similar but uses Control-\ instead of Control-D.