False position method ibn Luqa (10th century), an Arab mathematician from Baalbek, Lebanon. He justified the technique by a formal, Euclidean-style geometric proof. Within the tradition of medieval Muslim mathematics, double false position was known as "hisāb al-khaṭāʾayn" ("reckoning by two errors"). It was used for centuries to solve practical problems such as commercial and juridical questions (estate partitions according to rules of Quranic inheritance), as well as purely recreational problems. The algorithm was often memorized with the aid of mnemonics, such as a verse attributed to Ibn al-Yasamin and balance-scale diagrams explained by al-Hassar and Ibn al-Banna, all three being mathematicians of
Mario Sanchez (soccer) Mario Sanchez (soccer) Mario Sanchez is a retired American soccer midfielder who is the former head coach of the SIU Edwardsville Cougars men's soccer team. He played professionally in the USISL and USL A-League, winning the 1996 and 1997 USISL championship with the Central Coast Roadrunners. Sanchez graduated from Etiwanda High School in 1993. He played soccer for the Alta Loma Soccer Club which won the 1992 U-17 National Championship. He attended the California State University, Fresno, playing on the men's soccer team from 1993 to 1997. In August 1996, he tore his anterior cruciate ligament in practice and lost