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3-D Pythagoras: "Right" On and Solid.
Peer reviewed Peer reviewed
Plett, Stephen – AMATYC Review, 1989
Presents a theorem and its converse to generate all of the primitive Pythagorean quadruples. Provides a BASIC program generating them. (YP)
Descriptors: Algorithms, College Mathematics, Equations (Mathematics), Higher Education
Computed Solution Curves for Differential Equations.
Peer reviewed Peer reviewed
Mathews, John H. – AMATYC Review, 1989
Discusses numerical methods to compute approximate solutions of a differential equation. Provides a Pascal program for the extended Euler-Heun method. (YP)
Descriptors: Calculators, College Mathematics, Differential Equations, Equations (Mathematics)
Around the Sun in a Graphing Calculator.
Peer reviewed Peer reviewed
Demana, Franklin; Waits, Bert K. – Mathematics Teacher, 1989
Discusses the use of graphing calculators for polar and parametric equations. Presents eight lines of the program for the graph of a parametric equation and 11 lines of the program for a graph of a polar equation. Illustrates the application of the programs for planetary motion and free-fall motion. (YP)
Descriptors: College Mathematics, Computer Uses in Education, Equations (Mathematics), Graphing Calculators
An Improved Newton's Method.
Peer reviewed Peer reviewed
Mathews, John H. – AMATYC Review, 1989
Describes Newton's method to locate roots of an equation using the Newton-Raphson iteration formula. Develops an adaptive method overcoming limitations of the iteration method. Provides the algorithm and computer program of the adaptive Newton-Raphson method. (YP)
Descriptors: Algorithms, College Mathematics, Computation, Equations (Mathematics)