False position method Moroccan origin. Leonardo of Pisa (Fibonacci) devoted Chapter 13 of his book "Liber Abaci" (AD 1202) to explaining and demonstrating the uses of double false position, terming the method "regulis elchatayn" after the "al-khaṭāʾayn" method that he had learned from Arab sources. In 1494, Pacioli used the term "el cataym" in his book "Summa de arithmetica", probably taking the term from Fibonacci. Other European writers would follow Pacioli and sometimes provided a translation into Latin or the vernacular. For instance, Tartaglia translates the latinized version of Pacioli's term into the vernacular "false positions" in 1556. Pacioli's term nearly disappeared in
Rachel Wood (soccer) 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 U16 team