#Etymology#History of Mathematics#Computer Science
Where did the term 'algorithm' originate?
TL;DR Summary: The term 'algorithm' originated from the name of the 9th-century Persian mathematician Muhammad ibn Musa al-Khwarizmi, whose Latinized name, Algoritmi, referred to his work on mathematical procedures.
Where did the term 'algorithm' originate?
The word algorithm has a fascinating etymological history that traces back over a thousand years to the Islamic Golden Age in Baghdad.
The Etymological Roots
The term is a corruption of the name of Muhammad ibn Musa al-Khwarizmi (c. 780–850), a renowned Persian mathematician, astronomer, and geographer working at the House of Wisdom in Baghdad.
Around 820 AD, al-Khwarizmi wrote an influential treatise on Hindu-Arabic numerals and arithmetic. When his work was translated into Latin in the 12th century, his name was rendered as Algoritmi. Over time, this Latinized name evolved to refer not to the man himself, but to the rules and step-by-step mathematical procedures he championed—specifically, the system of performing arithmetic using Arabic numerals.
Evolution of the Meaning
- Medieval Period: Algoritmus originally referred specifically to the rules of calculating with Hindu-Arabic numerals.
- 17th Century: The spelling drifted closer to the Greek-influenced word arithmos (meaning number), shifting the term to algorithm.
- Modern Era: With the advent of computers in the 20th century, the definition expanded from basic mathematical calculations to mean any systematic, step-by-step procedure used by a computer to solve a problem or perform a calculation.