Numerical Approximation Methods π ≈ 355/113

From the reviews:

“This book is appropriate as a text for a course in computational methods as well as a reference for researchers who need such methods in their work. This book presents numerical approximation techniques for solving various types of mathematical problems that cannot be solved analytically. … This text also contains original methods developed by the author. Examples are used extensively to illustrate the theory.” (Michael M. Pahirya, Zentralblatt MATH, Vol. 1228, 2012)

From the reviews:"This book is appropriate as a text for a course in computational methods as well as a reference for researchers who need such methods in their work. This book presents numerical approximation techniques for solving various types of mathematical problems that cannot be solved analytically. ... This text also contains original methods developed by the author. Examples are used extensively to illustrate the theory." (Michael M. Pahirya, Zentralblatt MATH, Vol. 1228, 2012)