Mathematician:Claudius Ptolemy
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Mathematician
Roman citizen, of either Greek or Egyptian ancestry.
Mathematician, astronomer and general all-round scientist.
Best known for being the author of several scientific works, including Almagest.
Nationality
Roman (of Greek or Egyptian origin).
History
- Born: c 90 CE, Ptolemais Hermiou in the Thebaid
- Died: c 168 CE, Alexandria in Egypt
Theorems
- Ptolemy's Theorem
- Ptolemy's Formulas (also known as Compound Angle Formulas)
Results named for Claudius Ptolemy can be found here.
Definitions of concepts named for Claudius Ptolemy can be found here.
Publications
- c. 150: Syntaxis Mathematica ("Mathematical Collection"), otherwise known as Almagest ("The Greatest") (on astronomy)
- c. 150: Apotelesmatika ("Astrological Outcomes" or "Effects") or (in Latin) Tetrabiblos ("Four books") (on astrology)
- Planetary Hypotheses (on astronomy)
- Handy Tables (on astronomy)
- Phaseis (Risings of the Fixed Stars)
- Geographia
- Harmonics (on music theory)
- Optics
Also known as
Latin name: Claudius Ptolemaeus, in Greek: Κλαύδιος Πτολεμαῖος (Klaúdios Ptolemaîos).
Known generally as Ptolemy (pronounced Toll-em-ee).
Sources
- John J. O'Connor and Edmund F. Robertson: "Claudius Ptolemy": MacTutor History of Mathematics archive
- 1986: David Wells: Curious and Interesting Numbers ... (previous) ... (next): A List of Mathematicians in Chronological Sequence
- 1991: David Wells: Curious and Interesting Geometry ... (previous) ... (next): A Chronological List Of Mathematicians
- 1992: George F. Simmons: Calculus Gems ... (previous) ... (next): Chapter $\text {B}.25$: Kepler's Laws and Newton's Law of Gravitation
- 1997: David Wells: Curious and Interesting Numbers (2nd ed.) ... (previous) ... (next): A List of Mathematicians in Chronological Sequence
- 1998: David Nelson: The Penguin Dictionary of Mathematics (2nd ed.) ... (previous) ... (next): Ptolemy, Claudius (2nd century ad)
- 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): Ptolemy, Claudius (2nd century ad)
- 2008: Ian Stewart: Taming the Infinite ... (previous) ... (next): Chapter $5$: Eternal Triangles: Ptolemy
- 2008: Ian Stewart: Taming the Infinite ... (previous) ... (next): Chapter $8$: The System of the World: The need for Calculus
- 2014: Christopher Clapham and James Nicholson: The Concise Oxford Dictionary of Mathematics (5th ed.) ... (previous) ... (next): Ptolemy (Claudius Ptolemaeus) (2nd century ad)