# Mathematician:Diophantus of Alexandria

## Contents

## Mathematician

Author of a series of books called *Arithmetica*, some of which are now lost, concerning the solution of algebraic equations.

Sometimes referred to as "the father of algebra", but some claim the title should belong to Al-Khwarizmi.

## Nationality

Egyptian

## History

- Born: between 200 and 214 CE (location unknown)
- Died: between 284 and 298 CE

## Theorems and Definitions

- Diophantus's Identity (also known as Brahmagupta-Fibonacci Identity)

Results named for **Diophantus of Alexandria** can be found here.

Definitions of concepts named for **Diophantus of Alexandria** can be found here.

## Writings

*Arithmetica*(13 books, of which 10 have survived)

*On Polygonal Numbers*(only fragments now exist)*Porisms*(may have originally been part of*Arithmetica*)

## Also see

## Sources

- John J. O'Connor and Edmund F. Robertson: "Diophantus of Alexandria": 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): $84$ - 1992: George F. Simmons:
*Calculus Gems*... (previous) ... (next): Chapter $\text {A}.9$: Hypatia (A.D. $370?$ – $415$) - 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): $84$ - 2008: Ian Stewart:
*Taming the Infinite*... (previous) ... (next): Chapter $3$: Notations and Numbers - 2008: Ian Stewart:
*Taming the Infinite*... (previous) ... (next): Chapter $7$: Patterns in Numbers