文摘
In this paper, we study the extraction of roots as presented by Al-Kashi in his 1427 book “Key to Arithmetic-and Stevin in his 1585 book “Arithmetic- In analyzing their methods, we note that Stevin’s technique contains some flaws that we amend to present a coherent algorithm. We then show that the underlying algorithm for the methods of both Al-Kashi and Stevin is the same.