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Pathological Examples Using the TI-85.

Peer reviewed

Cruthirds, John; Dodd, Fred – Mathematics and Computer Education, 1997

Provides pathological examples for which graphing calculators sometimes give surprising, misleading, or incorrect results. Investigates some of the more interesting of these examples encountered while using the TI-85 in a variety of undergraduate courses including calculus and matrix theory. (DDR)

Descriptors: Algorithms, Calculators, Calculus, College Curriculum

What Function is This?

Peer reviewed

Dobbs, David E.; Peterson, John C. – Mathematics and Computer Education, 1997

Presents several types of functions which fit a given set of data and create opportunities for classroom discussion comparing different kinds of functions and identifying some of the potential hazards associated with extrapolation from best-fit functions. (DDR)

Descriptors: Algorithms, Calculators, Calculus, College Curriculum