## How the Arabs Invented Algebra: The History of the Concept of VariablesThis mathematical odyssey explains the concepts of variables and constants through the review of how Algebra was invented. Includes a chart of the ancient finger-counting method, various problem-solving sets, and colorful photographs and illustrations of ancient markets and modern-day bazaars. |

### Other editions - View all

How the Arabs Invented Algebra: The History of the Concept of Variables Tika Downey Limited preview - 2003 |

How the Arabs Invented Algebra: The History of the Concept of Variables Tika Downey No preview available - 2004 |

How the Arabs Invented Algebra: The History of the Concept of Variables Tika Downey No preview available - 2004 |

### Common terms and phrases

२ ३ ४ Abu Kamil additional advantages al-Khwarizmi al-Mamun algebra equation algebra problems amount ancient Arab Arab and Muslim Baghdad beautiful began blue cloth book written bought calculations called cloth seller complete constant cost customers customers want deal decide decorate equals Europe Fibonacci finger counting give gold cloth green cloth hand Hindu numerals House of Wisdom important invented Islamic keep left side look manuscripts mathematicians merchants Multiplying Nagari numerals named number of yards number system operations painting palace pay the cloth places purple cloth quickly and easily receive red silk remember right side shown shows solve solve math problems Someone stand STORY subtract 12 tell titled total number variable write the problem wrote yards of gold yards of purple yellow cloth yellow silk است این با به که یکی