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Topic:  same error in your applet? 
Related Item:  http://mathforum.org/mathtools/tool/1717/ 
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Subject:  error in roots for TI app? 
Author:  Steve Weimar 
Date:  Dec 11 2003 
running OS 2.08. The polynomial that generated the error was
x^4+2x^3x^24x2.
The application seems to graph it correctly but calculated two roots as
nonreal. I have the following factorization for the polynomial:
(x+1)(x+1)(x+sqrt(2))(xsqrt(2))
The solve function of the app seemed to miss the 1 root. Can anyone confirm
this and does anyone know why?
The builtin zero functions of the TI89 seem to get it right. It's the
additional, downloaded application that appears to have an error.
 steve
 
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