Mathematician:Theodorus of Cyrene
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Mathematician
Ancient Libyan Greek mathematician best known for the mathematical theorem now known as the Spiral of Theodorus.
Taught mathematics to Plato.
Proved that the square roots of the natural numbers from $3$ to $17$, except for $4$, $9$ and $16$, are irrational.
Known about only from the works of Plato.
Nationality
Libyan Greek
History
- Born: 465 BC in Cyrene (now Shahhat, Libya)
- Died: 398 BC in Cyrene (now Shahhat, Libya)
Theorems and Definitions
Sources
- John J. O'Connor and Edmund F. Robertson: "Theodorus of Cyrene": MacTutor History of Mathematics archive
- 1986: David Wells: Curious and Interesting Numbers ... (previous) ... (next): A List of Mathematicians in Chronological Sequence
- 1986: David Wells: Curious and Interesting Numbers ... (previous) ... (next): $1 \cdotp 41421 \, 35623 \, 73095 \, 04880 \, 16887 \, 24209 \, 69807 \, 85697 \ldots$
- 1997: David Wells: Curious and Interesting Numbers (2nd ed.) ... (previous) ... (next): A List of Mathematicians in Chronological Sequence
- 1997: David Wells: Curious and Interesting Numbers (2nd ed.) ... (previous) ... (next): $1 \cdotp 41421 \, 35623 \, 73095 \, 04880 \, 16887 \, 24209 \, 69807 \, 85697 \ldots$
- 1998: David Nelson: The Penguin Dictionary of Mathematics (2nd ed.) ... (previous) ... (next): Theodorus of Cyrene (c. 425 bc)
- 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): Theodorus of Cyrene (c. 425 bc)