For decades, engineers have utilized Petri nets to develop automated systems with specific functional requirements or ...

has long been used for calculating the friction factor ... Although widely used, the Colebrook equation is iterative because the unknown friction factor appears on both sides of the equation.

Key fact If your calculator has an ANS button, use it to keep the value from one iteration to substitute into the next iteration. To solve the equation on a calculator with an ANS, type 2 =, then ...