The volume of a cylinder is the area of the cross-section multiplied by the height. D button is used to convert a value in terms of π to a decimal value. To calculate the surface area of a cylinder: ...

Pi, that powerful constant describing the ratio of a circle’s circumference to its diameter, has captured people’s imagination for more than 2,000 years. Yet the celebrated number has only recently ...

The questions in this quiz are suitable for GCSE maths students studying approximation, rounding to decimal places, rounding to significant figures, truncation, estimating calculations, limits of ...

1) D. Shanks & J.W. Wrench, "Calculation of Pi to 100,000 Decimals," Mathematics of Computation, vol. xvi, no. 77, January 1962. 2) J.W. Wrench, Jr. "The Evolution of ...