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The following table lists many specialized symbols commonly used in modern mathematics, ordered by their introduction date. The table can also be ordered alphabetically by clicking on the relevant header title.
This list is incomplete; you can help by adding missing items. ( January 2011 ) Latin and Greek letters are used in mathematics , science , engineering , and other areas where mathematical notation is used as symbols for constants , special functions , and also conventionally for variables representing certain quantities.
[a] Still they have found some usage on social media, for example by people who want a stylized user name, [4] and in email spam, in an attempt to bypass filters. All these letter shapes may be manipulated with MathML's attribute mathvariant. Double-struck C, N, Q, R and Z are handwritten forms of the corresponding bold letters.
The Unicode Standard encodes almost all standard characters used in mathematics. [1] Unicode Technical Report #25 provides comprehensive information about the character repertoire, their properties, and guidelines for implementation. [1]
This allows using them in any area of mathematics, without having to recall their definition. For example, if one encounters R {\displaystyle \mathbb {R} } in combinatorics , one should immediately know that this denotes the real numbers , although combinatorics does not study the real numbers (but it uses them for many proofs).
Code chart ∣ Web page Note : [ 1 ] [ 2 ] Miscellaneous Mathematical Symbols-A is a Unicode block containing characters for mathematical, logical, and database notation.
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For example, the constant π may be defined as the ratio of the length of a circle's circumference to its diameter. The following list includes a decimal expansion and set containing each number, ordered by year of discovery. The column headings may be clicked to sort the table alphabetically, by decimal value, or by set.