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In SGML, HTML and XML documents, the logical constructs known as character data and attribute values consist of sequences of characters, in which each character can manifest directly (representing itself), or can be represented by a series of characters called a character reference, of which there are two types: a numeric character reference and a character entity reference.
HTML and XML provide ways to reference Unicode characters when the characters themselves either cannot or should not be used. A numeric character reference refers to a character by its Universal Character Set/Unicode code point, and a character entity reference refers to a character by a predefined name.
In line with its origin as a superscript circle, the degree symbol (°) is composed by a superscript circle operator (∘). ^{\circ} . Superscripts and subscripts of arbitrary height can be done with the \raisebox{<dimen>}{<text>} command: the first argument is the amount to raise, and the second is the text; a negative first argument will ...
degree symbol ° alt + 0252. check symbol √. alt + 38. and symbol & alt + 7. bullet symbol • alt + 35. number symbol # alt + 247. approximately symbol ≈. alt + 0248. diameter symbol ø. alt ...
On the opposite, the code point U+0085 is a valid control character in Unicode and ISO/IEC 10646, as well as in XML 1.0 and XML 1.1 documents (in all contexts), and its usage is not discouraged (it is treated as whitespace in many XML contexts, or as a line-break control similar to U+000D and U+000A in preformatted texts in some XML applications).
There are other related issues, too. Don't use the degree sign standing alone for temperature: not "33° to 35 °C" but "33 °C to 35 °C". Use either both words spelled out, or the entire symbol consisting of the degree sign and identifying letter or letters. Don't write "22° Celsius" or "22 degrees C". Gene Nygaard 13:26, 25 July 2005 (UTC)
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The degree symbol or degree sign, °, is a glyph or symbol that is used, among other things, to represent degrees of arc (e.g. in geographic coordinate systems), hours (in the medical field), degrees of temperature or alcohol proof. The symbol consists of a small superscript circle.