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
Rachel Wood (soccer) of Boston. Rachel Wood (soccer) Rachel Marie Wood (born May 10, 1990) is an American soccer player. She played as a midfielder for Boston Breakers. Rachel Wood (born May 10, 1990) in Long Beach, California is an American soccer player. Started playing professional soccer in Iceland. Finally being transferred over to the Boston Breakers in 2014. She played as a midfielder for Boston Breakers and recently switched to centre back due to her height As most soccer players she started playing young. She played for Cal South Soccer Club and won the Region IV championship. Then was part of the