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
Brian Johnson (soccer) Brian Johnson (soccer) Brian "B.J." Johnson (born March 7, 1974) is a retired American soccer midfielder who spent five seasons in Major League Soccer with the Kansas City Wizards. He is an assistant coach with the West Virginia Mountaineers soccer team. In 1992, Johnson graduated from Granada High School in Livermore, California. He attended the Fresno State University, playing on the men's soccer team from 1992 to 1996. He spent the 1995 season training with the U.S. Olympic soccer team. In 1996, he returned to Fresno State where he was a 1996 Third Team All American. Johnson completed his degree