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  2. ASCII - Wikipedia

    en.wikipedia.org/wiki/ASCII

    Since the space character is considered an invisible graphic (rather than a control character) [3]: 223 [10] it is listed in the table below instead of in the previous section. Code 7F hex corresponds to the non-printable "delete" (DEL) control character and is therefore omitted from this chart; it is covered in the previous section's chart.

  3. Hexadecimal - Wikipedia

    en.wikipedia.org/wiki/Hexadecimal

    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 values 0 to 9 ...

  4. Template:Hexadecimal - Wikipedia

    en.wikipedia.org/wiki/Template:Hexadecimal

    Use: {{Hexadecimal|x}} where x is the decimal number to be converted to a hexadecimal. Decimals and fractions will be rounded down. The number is, by default, formatted with a final subscript 16 to display the base. An optional second parameter of |hex will replace the base with "hex". To opt out of the subscript, use a second parameter of |no ...

  5. Hex sign - Wikipedia

    en.wikipedia.org/wiki/Hex_sign

    Hex sign. 12-pointed compass rose on a hex sign. Hex signs are a form of Pennsylvania Dutch folk art, related to fraktur, found in the Fancy Dutch tradition in Pennsylvania Dutch Country. [1] Barn paintings, usually in the form of "stars in circles", began to appear on the landscape in the early 19th century and became widespread decades later ...

  6. Numeric character reference - Wikipedia

    en.wikipedia.org/wiki/Numeric_character_reference

    A numeric character reference (NCR) is a common markup construct used in SGML and SGML-derived markup languages such as HTML and XML. It consists of a short sequence of characters that, in turn, represents a single character. Since WebSgml, XML and HTML 4, the code points of the Universal Character Set (UCS) of Unicode are used.

  7. List of XML and HTML character entity references - Wikipedia

    en.wikipedia.org/wiki/List_of_XML_and_HTML...

    In HTML and XML, a numeric character reference refers to a character by its Universal Character Set / Unicode code point, and uses the format: &#xhhhh; or. &#nnnn; where the x must be lowercase in XML documents, hhhh is the code point in hexadecimal form, and nnnn is the code point in decimal form. The hhhh (or nnnn) may be any number of ...

  8. Number sign - Wikipedia

    en.wikipedia.org/wiki/Number_sign

    The symbol # is known variously in English-speaking regions as the number sign, [1] hash, [2] or pound sign. [3] The symbol has historically been used for a wide range of purposes including the designation of an ordinal number and as a ligatured abbreviation for pounds avoirdupois – having been derived from the now-rare ℔ .

  9. Engineering drawing abbreviations and symbols - Wikipedia

    en.wikipedia.org/wiki/Engineering_drawing...

    It is numbered with a stylized flag symbol surrounding the number (or sometimes a delta symbol). A general note applies generally and is not called out with flags. 2. Find number: "FN" meaning "find number" refers to the ordinal number that gives an ID tag to one of the constituents in a parts list (list of materials, bill of materials).