This program updates the TI-89 Polygraf() function, changing the method of data input making entry more user friendly and adding a number of additional features. Roots are found much more quickly than in previous versions, especially for higher degree polynomials. The program finds all roots, real, complex, and repeated, of an nth degree polynomial equation. In addition it finds minima and maxima, and then graphs the polynomial function. The function can be displayed in fully factored form and allows you to toggle between Auto and Approx displays for the roots and factors. The program uses the cZeros() function repeatedly, and in many cases returns results in exact form rather than decimal form. Polygraf() is my alternative to the TI Polynomial Root Finder, which sometimes introduces small imaginary parts to real roots and vice versa, especially for repeated roots.
|Title:||Polynomial Root Finder and Grapher|
|Requirements:||Requires the ti-89 calculator.
(Click here for an explanation)
|Brief Description:||TI-89 graphing calculator program for finding and graphing the roots of a polynomial.|
|Keywords:||Program, Graphing, ti-89, Calculator Polynomial, Root, Finder, and, Grapher|