# Algorithm ➗

**Algorithm**: The algorithm can be traced back to the Arabic *al-Ḵwārizmī* (via the French *algorism* and the Latin *algorismus*), the surname of the great 9th century Persian mathematician Muhammed ibn Musa al-Khwarizmi.

**Root:**The name

*al-Ḵwārizmī*means 'native of Khwarazm', a large oasis region that is split between modern-day Kazakhstan, Turkmenistan and Uzbekistan.

Al-Khawrizmi invented decimal numbers and established the basis of modern algebraic theory with his book Kitab al-jabr wa’l-muqabalah (“The rules of restoration and reduction”).

It is

*al-jabr*, the Arabic for ‘restoration’, in the title of al-Khwarizmi's book that gave us the word*algebra*. Before it was adopted in the mathematical sense, it meant ‘the reunion of broken parts’ and was used in the context of fixing broken bones.**Source**: Oxford English Dictionary