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Polynomial Root Finder and Grapher
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FILE INFORMATION
Ranked as 6219 on our all-time top downloads list with 4074 downloads.
Ranked as 2383 on our top downloads list for the past seven days with 9 downloads.
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polygraf.zip
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Filename
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polygraf.zip
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Title
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Polynomial Root Finder and Grapher
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Description
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This update of Polygraf() changes the method of data input, making entry more user friendly and also making it easier to notice and correct errors. Roots are found much more quickly than in previous versions, especially for higher degree polynomials. Polygraf() finds all roots, real, complex, and repeated, of an nth degree polynomial equation, 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. For a more comprehensive program which includes Polygraf() as well as easy to use programs (none of the usual ()'s, {}'s, or x's to enter) for multiplying, dividing, and factoring polynomials, and for analyzing and graphing rational functions, see Polynom().
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Author
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Don Benson (dnbnsn@cox.net)
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Category
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TI-89 BASIC Math Programs
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File Size
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4,481 bytes
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File Date and Time
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Sun Oct 19 21:10:20 2003
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Documentation Included?
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Yes
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