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  2. Empty string - Wikipedia

    en.wikipedia.org/wiki/Empty_string

    The empty string should not be confused with the empty language ∅, which is a formal language (i.e. a set of strings) that contains no strings, not even the empty string. The empty string has several properties: |ε| = 0. Its string length is zero. ε ⋅ s = s ⋅ ε = s. The empty string is the identity element of the concatenation operation

  3. Microsoft Excel - Wikipedia

    en.wikipedia.org/wiki/Microsoft_Excel

    Microsoft Excel is a spreadsheet editor developed by Microsoft for Windows, macOS, Android, iOS and iPadOS.It features calculation or computation capabilities, graphing tools, pivot tables, and a macro programming language called Visual Basic for Applications (VBA).

  4. Levenshtein distance - Wikipedia

    en.wikipedia.org/wiki/Levenshtein_distance

    In information theory, linguistics, and computer science, the Levenshtein distance is a string metric for measuring the difference between two sequences. The Levenshtein distance between two words is the minimum number of single-character edits (insertions, deletions or substitutions) required to change one word into the other.

  5. Percent sign - Wikipedia

    en.wikipedia.org/wiki/Percent_sign

    The percent sign % (sometimes per cent sign in British English) is the symbol used to indicate a percentage, a number or ratio as a fraction of 100. Related signs include the permille (per thousand) sign ‰ and the permyriad (per ten thousand) sign ‱ (also known as a basis point), which indicate that a number is divided by one thousand or ten thousand, respectively.

  6. Comma-separated values - Wikipedia

    en.wikipedia.org/wiki/Comma-separated_values

    Comma-separated values is a data format that predates personal computers by more than a decade: the IBM Fortran (level H extended) compiler under OS/360 supported CSV in 1972. [14] List-directed ("free form") input/output was defined in FORTRAN 77, approved in 1978. List-directed input used commas or spaces for delimiters, so unquoted character ...

  7. String interpolation - Wikipedia

    en.wikipedia.org/wiki/String_interpolation

    Rust does not have general string interpolation, but provides similar functionality via macros, referred to as "Captured identifiers in format strings", introduced in version 1.58.0, released 2022-01-13. [15] Rust provides formatting via the std::fmt module, which is interfaced with through various macros such as format!, write!, and print!.

  8. LibreOffice - Wikipedia

    en.wikipedia.org/wiki/LibreOffice

    TEXT() now allows the second argument to be an empty format string for interoperability with other implementations; Improved opening speed of XLSX files with many pictures; Impress & Draw; Subscripts now return to the default of 8%. Automatic positioning fixed for superscripts and subscripts in Textboxes; Implemented support for semi ...

  9. Percent-encoding - Wikipedia

    en.wikipedia.org/wiki/Percent-encoding

    Since the publication of RFC 1738 in 1994 it has been specified that schemes that provide for the representation of binary data in a URI must divide the data into 8-bit bytes and percent-encode each byte in the same manner as above. [1] Byte value 0x0F, for example, should be represented by %0F, but byte value 0x41 can be represented by A, or ...