The approximation of functions by algebraic polynomials, trigonometric polynomials and splines, is not only an important topic of mathematical studies but also provides powerful mathematical tools to represent non-arithmetic quantities by arithmetic quantities to achieve the accuracy to a desired degree. The role of linear positive operators is very important in the approximation theory. The theorem given by Weierstrass is the basis of theory of approximation for the functions of real variable and has huge importance in the whole of mathematical analysis.The main purpose of this book is to...

Sewage Treatment Plants (STP's) are designed and constructed with an aim to manage wastewaterso as to minimize or remove organic matter, solids and other pollutants before it enters a waterbody. Although a lot of work has been carried out regarding STP Performance evaluation withdifferent technologies by various researchers, but not much emphasis has been given ondevelopment of regression model of Biochemical Oxygen Demand (BOD) removal efficiency forActivated Sludge Process (ASP), Extended Aeration (EA) and Densadeck/BIOFOR. Hence thisresearch work will emphasis on the comparative...