False position method double false position became a root-finding algorithm used in iterative numerical approximation techniques. Many equations, including most of the more complicated ones, can be solved only by iterative numerical approximation. This consists of trial and error, in which various values of the unknown quantity are tried. That trial-and-error may be guided by calculating, at each step of the procedure, a new estimate for the solution. There are many ways to arrive at a calculated-estimate and "regula falsi" provides one of these. Given an equation, move all of its terms to one side so that it has the form, , where
Midfielder attack. The holding midfielder may also have responsibilities when their team has the ball. This player will make mostly short and simple passes to more attacking members of their team but may try some more difficult passes depending on the team's strategy. Marcelo Bielsa is considered as a pioneer for the use of a holding midfielder in defence. This position may be seen in the 4–2–3–1 and 4–4–2 diamond formations. Initially, a defensive midfielder, or "destroyer", and a playmaker, or "creator", were often fielded alongside each other as a team's two holding central midfielders. The destroyer was usually responsible for