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This is a list of letters of the Greek alphabet. The definition of a Greek letter for this list is a character encoded in the Unicode standard that a has script property of "Greek" and the general category of "Letter". An overview of the distribution of Greek letters is given in Greek script in Unicode.
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. It was derived from the Phoenician letter Pe ().
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.
Roman numerals: for example the word "six" in the clue might be used to indicate the letters VI The name of a chemical element may be used to signify its symbol; e.g., W for tungsten The days of the week; e.g., TH for Thursday
The Greek alphabet has been used to write the Greek language since the late 9th or early 8th century BC. [2] [3] It was derived from the earlier Phoenician alphabet, [4] and is the earliest known alphabetic script to have developed distinct letters for vowels as well as consonants. [5]
The OpenType font format has the feature tag "mgrk" ("Mathematical Greek") to identify a glyph as representing a Greek letter to be used in mathematical (as opposed to Greek language) contexts. The table below shows a comparison of Greek letters rendered in TeX and HTML. The font used in the TeX rendering is an italic style.
Many of the letters familiar from the classical Greek alphabet displayed additional variation in shapes, with some of the variant forms being characteristic of specific local alphabets. The form of Ζ generally had a straight stem in all local alphabets in the archaic period. Θ was mostly crossed (or ).
Greek letters are frequently used for scientific and symbolic purposes. This category is intended as a list of the Greek letters; details on their usage can be found in their individual articles. This category is intended as a list of the Greek letters; details on their usage can be found in their individual articles.