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Pi (/ˈpaɪ/; Ancient Greek /piː/ or /peî/, uppercase Π, lowercase π, cursive ϖ; Greek: πι) is the sixteenth letter of the Greek alphabet, representing the voiceless bilabial plosive IPA:. In the system of Greek numerals it has a value of 80.
The number π (/ p aɪ / ⓘ; spelled out as "pi") is a mathematical constant, approximately equal to 3.14159, that is the ratio of a circle's circumference to its diameter.It appears in many formulae across mathematics and physics, and some of these formulae are commonly used for defining π, to avoid relying on the definition of the length of a curve.
The text after "//" will be ignored when converting the page, so it is possible to use this space to add relevant notes about specific rules, to clarify its purpose or help future editors of the dictionary.
Quivira: Provides full Unicode support for all Coptic letters; Segoe UI Historic (Microsoft Windows font, available in Windows 10 and later) Segoe UI Symbol (Microsoft Windows font, available in Windows 7 and later) Sophia Nubian font by SIL International; TH-Times (completely supports up to Unicode 15.1) Various Coptic fonts
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.
Russian letters are in the Cyrillic group; most other European letters are in the Latin group. You may need to click several categories in both places to find your special character, especially if it’s non-alphabetic: mathematical symbols can be at Symbols , Insert , or Math and logic (the latter two are only at the bottom link), or at ...
Windows Glyph List 4, or more commonly WGL4 for short, also known as the Pan-European character set, is a character repertoire on Microsoft operating systems comprising 657 Unicode characters, two of them for private use.
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