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The Loss of Accuracy: Pitfalls and Implications for Mathematics Instruction.
Peer reviewed Peer reviewed
Glidden, Peter Lochiel – Mathematics Teacher, 1992
Offers examples of loss of accuracy when using digital computing devices. Discusses causes for loss of accuracy and methods of preventing loss. Presents implications that loss of accuracy has for mathematics instruction. (MDH)
Descriptors: Calculators, Computation, Computer Assisted Instruction, Mathematics Education
Archimedes and Pi.
Peer reviewed Peer reviewed
Shilgalis, Thomas W. – Mathematics Teacher, 1989
Discusses a calculation method to approximate pi. Describes how to get an approximation to the circumscribed and inscribed perimeters of regular polygons of n sides. Presents the computer program and result of the approximation. (YP)
Descriptors: College Mathematics, Computation, Computer Software, Geometric Concepts
A Rapidly Converging Recursive Approach to Pi.
Peer reviewed Peer reviewed
Dence, Joseph B.; Dence, Thomas P. – Mathematics Teacher, 1993
Presents an algorithm to estimate pi by approximating a unit circle with a sequence of inscribed regular polygons. Demonstrates the application of the algorithm with a hand-held calculator and an Apple computer. Provides a program to calculate pi in Pascal programing language. (12 references) (MDH)
Descriptors: Algorithms, Area, Calculators, Computation