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
Holly King (soccer) As a senior in 2012, she started every match as a holding midfielder and ranked fifth among the team with a career season-high 14 points. She earned 2012 All-America and Academic All-America, SEC Defensive Player of the Year, and All-SEC first team honors. In 2011, she was named Academic All-America and All-SEC. In February 2013, King was selected in the third round (19th overall) of the 2013 NWSL College Draft by the Washington Spirit for the inaugural season of the National Women's Soccer League. Holly King (soccer) Holly King (born March 13, 1991) is an American soccer midfielder currently playing