Keywords: Muḥammad ibn Mūsā al-Khwārizmī.png en Muhammad ibn Musa al-Khwarizmi Working at The House of Wisdom in Baghdad around 825 al-Khwarizmi wrote a book entitled The Book of Addition and Subtraction According to the Hindu Calculation It extolled the virtues of a base ten numbering system that uses a placeholder known as a punta or point which became the zero This numbering system swept through Muslim Empire to Europe and beyond Today the Hindu-Arabic numbering system is used worldwide Al-Kwarizmi wrote another book that changed mathematics forever The Compendious Book on Calculation by Completion and Balancing Two of the words in the Arabic title are al-jabr from which we derive the English word algebra It is the symbolic language on which much of higher mathematics is based 1613 http //www storyofmathematics com/islamic_alkhwarizmi html ms PD-old-100 Uploaded with UploadWizard Muhammad ibn Musa al-Khwarizmi |