You will never again need to look up the value of Pi for your mathematical activities. Pocket Pi Reference is constructed precisely to provide the measurements necessary to calculate the actual value of this fundamental constant.
The circumference of Pocket Pi Reference lays out the numerator, and its diameter is the denominator. Using only these metrics, the user can work out Pi as accurately as the world’s fastest supercomputers. Accuracy of the measurement of each dimension depends on the equipment and methods used.
Pocket Pi Reference also comes with a handy, durable carrying case that keeps the instrument free of dust and scratches.