The uppercase letter alpha is not generally used as a symbol because it tends to be rendered identically to the uppercase Latin A. Most occurrences of alpha in science are the lowercase alpha. In aerodynamics, the letter is used as a symbol for the angle of attack of an aircraft and the word "alpha" is used as a synonym for this property. In Attic, the shift did not take place after epsilon, iota, and rho (ε, ι, ρ; e, i, r). In Ancient Greek, alpha was pronounced a and could be either phonemically long (aː) καλαμακιου or short (a). Alpha /ˈælfə/ ⓘ ALF-ə (uppercase Α, lowercase α)a is the first letter of the Greek alphabet.
In handwriting, ensure the lowercase α has a clear loop and tail to distinguish it from the Latin a. For the range A0–FF (hex), it follows the Unicode range 370–3CF (see below) except that some symbols, like ©, ½, § etc. are used where Unicode has unused locations. Some letters can occur in variant shapes, mostly inherited from medieval minuscule handwriting. The Roman alphabet has a similar extended form with such double-digit letters when necessary, but it is used for columns in a table or chart rather than chapters of an organization. In an organization that expands to more than 24 chapters, the chapter after Ω chapter is AA chapter, followed by AB chapter, etc.
It was derived from the earlier Phoenician alphabet, and is the earliest known alphabetic script to systematically write vowels as well as consonants. Final ρ (r) is preserved before vowels. Each of these is still a "chapter Letter", albeit a double-digit letter just as 10 through 99 are double-digit numbers. Different chapters within the same fraternity are almost always (with a handful of exceptions) designated using Greek letters as serial numbers.
Historical Significance
- This system has remained in use in Greek up to the present day, although today it is only employed for limited purposes such as enumerating chapters in a book, similar to the way Roman numerals are used in English.
- In the 9th and 10th centuries, uncial book hands were replaced with a new, more compact writing style, with letter forms partly adapted from the earlier cursive.
- Additionally, Modern and Ancient Greek now use different diacritics, with ancient Greek using the polytonic orthography and modern Greek keeping only the stress accent (acute) and the diaeresis.
The classical twenty-four-letter alphabet that is now used to represent the Greek language was originally the local alphabet of Ionia. Epichoric alphabets are commonly divided into four major types according to their different treatments of additional consonant letters for the aspirated consonants (/pʰ, kʰ/) and consonant clusters (/ks, ps/) of Greek. Individual letter shapes were mirrored depending on the writing direction of the current line.
Ancient Greek
Like Latin and other alphabetic scripts, Greek originally had only a single form of each letter, without a distinction between uppercase and lowercase. Some dialects of the Aegean and Cypriot have retained long consonants and pronounce ˈɣamːa and ˈkapʰa; also, ήτα has come to be pronounced ˈitʰa in Cypriot. The letter ⟨ε⟩ was called e psilon ("plain e") to distinguish it from the identically pronounced digraph ⟨αι⟩, while, similarly, ⟨υ⟩, which at this time was pronounced y, was called y psilon ("plain y") to distinguish it from the identically pronounced digraph ⟨οι⟩. Thus, the letters ⟨ο⟩ and ⟨ω⟩, pronounced identically by this time, were called o mikron ("small o") and o mega ("big o").
Archaic variants
During the Renaissance, western printers adopted the minuscule letter forms as lowercase printed typefaces, while modeling uppercase letters on the ancient inscriptional forms. In the 9th and 10th centuries, uncial book hands were replaced with a new, more compact writing style, with letter forms partly adapted from the earlier cursive. The cursive forms approached the style of lowercase letter forms, with ascenders and descenders, as well as many connecting lines and ligatures between letters. In the following group of consonant letters, the older forms of the names in Ancient Greek were spelled with -εῖ, indicating an original pronunciation with -ē. Here too, the changes in the pronunciation of the letter names between Ancient and Modern Greek are regular. The name of lambda is attested in early sources as λάβδα besides λάμβδα; in Modern Greek the spelling is often λάμδα, reflecting pronunciation.
As an organization expands, it establishes a B chapter, a Γ chapter, and so on and so forth. The IPA symbol for the palatal lateral approximant is ⟨ʎ⟩, which looks similar to lambda, but is actually an inverted lowercase y. Several of them denote fricative consonants; the rest stand for variants of vowel sounds. Several Greek letters are used as phonetic symbols in the International Phonetic Alphabet (IPA). Many symbols have traditional uses, such as lower case epsilon (ε) for an arbitrarily small positive number, lower case pi (π) for the ratio of the circumference of a circle to its diameter, capital sigma (Σ) for summation, and lower case sigma (σ) for standard deviation. Greek symbols are used as symbols in mathematics, physics and other sciences.
Sometimes early fraternal organizations were known by their Greek letter names because the mottos that these names stood for were secret and revealed only to members of the fraternity. The name of this fraternal organization is an acronym for the ancient Greek phrase Φιλοσοφία Βίου Κυβερνήτης (Philosophia Biou Kybernētēs), which means "Love of wisdom, the guide of life" and serves as the organization's motto. In North America, many college fraternities and sororities are named with combinations of Greek letters, and are hence also known as "Greek letter organizations". To mark a letter as a numeral sign, a small stroke called keraia is added to the right of it.
This iota represents the former offglide of what were originally long diphthongs, ⟨ᾱι, ηι, ωι⟩ (i.e. /aːi, ɛːi, ɔːi/), which became monophthongized during antiquity. The acute accent in aulós avˈlos ('flute') distinguishes the word from its homograph áulos ˈailos ('immaterial'). Modern Greek speakers typically use the same, modern symbol–sound mappings in reading Greek of all historical stages. As a consequence, the spellings of words in Modern Greek are often not predictable from the pronunciation alone, while the reverse mapping, from spelling to pronunciation, is usually regular and predictable. Additionally, Modern and Ancient Greek now use different diacritics, with ancient Greek using the polytonic orthography and modern Greek keeping only the stress accent (acute) and the diaeresis. Sound values and conventional transcriptions for some of the letters differ between Ancient and Modern Greek usage because the pronunciation of Greek has changed significantly between the 5th century BC and the present.