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  2. Numeric precision in Microsoft Excel - Wikipedia

    en.wikipedia.org/wiki/Numeric_precision_in...

    Excel's storage of numbers in binary format also affects its accuracy. [3] To illustrate, the lower figure tabulates the simple addition 1 + x − 1 for several values of x. All the values of x begin at the 15 th decimal, so Excel must take them into account. Before calculating the sum 1 + x, Excel first approximates x as a binary number

  3. List of file signatures - Wikipedia

    en.wikipedia.org/wiki/List_of_file_signatures

    This is a list of file signatures, data used to identify or verify the content of a file.Such signatures are also known as magic numbers or Magic Bytes.; Many file formats are not intended to be read as text.

  4. List of ZIP Code prefixes - Wikipedia

    en.wikipedia.org/wiki/List_of_ZIP_Code_prefixes

    The 925 prefix originally covered only Riverside, California. The surrounding offices were originally under the 923 prefix. The present-day 926 prefix range only covers the southern and coastal portion of Orange County. This includes, Irvine, which originally had only ZIP Code, 92650.

  5. Hexadecimal - Wikipedia

    en.wikipedia.org/wiki/Hexadecimal

    v. t. e. In mathematics and computing, the hexadecimal (also base-16 or simply hex) numeral system is a positional numeral system that represents numbers using a radix (base) of sixteen. Unlike the decimal system representing numbers using ten symbols, hexadecimal uses sixteen distinct symbols, most often the symbols "0"–"9" to represent ...

  6. List of airline codes - Wikipedia

    en.wikipedia.org/wiki/List_of_airline_codes

    Air Excel: TINGA-TINGA Tanzania VAE Air Evans: AIR-EVANS Spain Ecuela de Pilotos Privados WHY Air Sorel: AIR SOREL Canada WDR Air Net Private Charter: WIND RIDER United States XEC Air Executive Charter: Germany GS UPA Air Foyle: FOYLE United Kingdom defunct, ICAO code no longer allocated VTY Air Midwest (Nigeria) VICTORY Nigeria VT VTA Air ...

  7. National conventions for writing telephone numbers - Wikipedia

    en.wikipedia.org/wiki/National_conventions_for...

    Belgian telephone numbers consist of three parts: First '0', secondly the "zone prefix" ( A) which has one or two digits for landlines and three digits for mobile phones, and thirdly the "subscriber's number" ( B ). Land lines always have nine digits. They are prefixed by a zero, followed by the zone prefix.

  8. List of numbers - Wikipedia, the free encyclopedia

    en.wikipedia.org/wiki/List_of_numbers

    A list of articles about numbers (not about numerals). Topics include powers of ten, notable integers, prime and cardinal numbers, and the myriad system.

  9. 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). Excel forms part of the Microsoft 365 suite of software.