How 'algorithm' got its name from a 9th-century Persian mathematician
by Scott Neuman
https://www.npr.org/2026/06/11/nx-s1-5848013/algorithm-word-week-etymology
The Concise Book of Calculation by Restoration and Balancing at @wikipedia
https://en.wikipedia.org/wiki/Al-Jabr
The algebra of Mohammed ben Musa at @internetarchive
https://archive.org/details/algebraofmohamme00khuwrich