Ptolemy

n. dynasty of ancient Egyptian kings that ruled between 323 -30 BC; Claudius Ptolemaeus (127-151 AD), Greco-Egyptian geographer astronomer and mathematician

Claudius Ptolemaeus (Greek: ; after 83 –  161 AD), known in English as Ptolemy, was a Greek or Egyptian mathematician, geographer, astronomer, and astrologer who flourished in Alexandria, Roman Egypt.Ptolemy was the author of several scientific treatises, three of which would be of continuing importance to later Islamic and European science. The first is the astronomical treatise that is now known as the Almagest (in Greek, Η Μεγάλη Σύνταξις, "The Great Treatise", originally Μαθηματικἠ Σύνταξις, "Mathematical Treatise"). The second is the Geography, which is a thorough discussion of the geographic knowledge of the Greco-Roman world. The third is the astrological treatise known as the Tetrabiblos ("Four books") in which he attempted to adapt horoscopic astrology to the Aristotelian natural philosophy of his day.
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Noun
1. Alexandrian astronomer who proposed a geocentric system of astronomy that was undisputed until Copernicus (2nd century AD)
(synonym) Claudius Ptolemaeus
(hypernym) astronomer, uranologist, stargazer
2. an ancient dynasty of Macedonian kings who ruled Egypt from 323 BC to 30 BC; founded by Ptolemy I and ended with Cleopatra
(synonym) Ptolemaic dynasty
(hypernym) dynasty
(member-meronym) Ptolemy I

A flexible foundation for the specification, simulation, and rapid prototyping of systems. It is an object-oriented framework within which diverse models of computation can co-exist and interact. For example, using Ptolemy a data-flow system can be easily connected to a hardware simulator which in turn may be connected to a discrete-event system. Because of this, Ptolemy can be used to model entire systems. In addition, Ptolemy now has code generation capabilities. From a flow graph description, Ptolemy can generate both C code and DSP assembly code for rapid prototyping. Note that code generation is not yet complete, and is included in the current release for demonstration purposes only.
Version 0.4.1 includes a graphical algorithm layout, code generator and simulator. It requires C++, C and has been ported to Sun-4, MIPS/Ultrix; DSP56001, DSP96002. Ptolemy is an active research project.
ftp://ptolemy.bekeley.edu/pub/ptolemy/. Mailing list: ptolemy-hackers-request@ohm.berkeley.edu. E-mail: ptolemy@ohm.berkeley.edu.
(1993-04-22)

TOLOMEO