The Coptic script is the script used for writing the Coptic language, the latest stage of Egyptian. The repertoire of glyphs is based on the uncial Greek alphabet, augmented by letters borrowed from the Egyptian Demotic. It was the first alphabetic script used for the Egyptian language. There are several Coptic alphabets, as the script varies greatly among the various dialects and eras of the Coptic language.
The Coptic script has a long history going back to the Ptolemaic Kingdom, when the Greek alphabet was used to transcribe Demotic texts, with the aim of recording the correct pronunciation of Demotic. As early as the sixth century BCE and as late as the second century CE, an entire series of pre-Christian religious texts were written in what scholars term Old Coptic, Egyptian language texts written in the Greek alphabet.
In contrast to Old Coptic, seven additional Coptic letters were derived from Demotic, and many of these (though not all) are used in “true” form of Coptic writing. Coptic texts are associated with Christianity, Gnosticism, and Manichaeism.
With the spread of early Christianity in Egypt, knowledge of Egyptian hieroglyphs was lost by the late third century, as well as Demotic script slightly later, making way for a writing system more closely associated with the Coptic Orthodox Church. By the fourth century, the Coptic script was "standardized", particularly for the Sahidic dialect. (There are a number of differences between the alphabets as used in the various dialects in Coptic).
Coptic is not generally used today except by the members of the Coptic Orthodox Church to write their religious texts. All the Gnostic codices found at Nag Hammadi used the Coptic script.
The Old Nubian alphabet—used to write Old Nubian, a Nilo-Saharan language—is an uncial variant of the Coptic script, with additional characters borrowed from the Greek and Meroitic scripts.
The Coptic script was the first Egyptian writing system to indicate vowels, making Coptic documents invaluable for the interpretation of earlier Egyptian texts.
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The Greek alphabet has been used to write the Greek language since the late 9th or early 8th century BC. It is derived from the earlier Phoenician alphabet, and was the earliest known alphabetic script to have distinct letters for vowels as well as consonants. In Archaic and early Classical times, the Greek alphabet existed in many local variants, but, by the end of the 4th century BC, the Euclidean alphabet, with 24 letters, ordered from alpha to omega, had become standard and it is this version that is still used for Greek writing today.
The Phoenician alphabet is an alphabet (more specifically, an abjad) known in modern times from the Canaanite and Aramaic inscriptions found across the Mediterranean region. The name comes from the Phoenician civilization. The Phoenician alphabet is also called the Early Linear script (in a Semitic context, not connected to Minoan writing systems), because it is an early development of the Proto- or Old Canaanite or Proto-Sinaitic script, into a linear, purely alphabetic script, also marking the transfer from a multi-directional writing system, where a variety of writing directions occurred, to a regulated horizontal, right-to-left script.
Egyptian hieroglyphs (ˈhaɪrəˌɡlɪfs, ˈhaɪroʊˌɡlɪfs) were the formal writing system used in Ancient Egypt for writing the Egyptian language. Hieroglyphs combined logographic, syllabic and alphabetic elements, with some 1,000 distinct characters. Cursive hieroglyphs were used for religious literature on papyrus and wood. The later hieratic and demotic Egyptian scripts were derived from hieroglyphic writing, as was the Proto-Sinaitic script that later evolved into the Phoenician alphabet.
This paper studies multiuser random coding techniques for channel coding with a given (possibly suboptimal) decoding rule. For the mismatched discrete memoryless multiple-access channel, an error exponent is obtained that is tight with respect to the ensem ...
Institute of Electrical and Electronics Engineers2016