Re: Need help programming my TI-85


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Re: Need help programming my TI-85



srajwani@gpu2.srv.ualberta.ca (Shairoz Rajwani) wrote:


>I have a conics program for a TI-81 that I am trying to insert into my
>TI-85 but it does not seem to work.  The program is supposed to take
>values of an equation of the form Ax^2 + By^2 + Cxy + Dx + Ey + F = 0 and
>solve for y. A problem arises when the calculator has to substitute the
>values of A,B,C,D,E, and F into an equation that contains the unknown
>variable x.  An undefined arrow occurs as there is no value for x.  Also
>the calculator is not able to store the equation and then insert it into
>the graphing prompt y1 so that the conic can be graphed.  Could some one
>please help me.


There is a much easier way.  Plug the equation into the solver, supply
values for A, B, C, D, E, F, and y, and let the calculator solve for
x.  You don't need a program at all.


            |              "While still a young child, I told my parents
________----+----________  that when I grew up I wanted to fly; but now
           / \             realize I can't do both."
          *---*
                                     mikeh@clovis.nerdnosh.org


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