TIB: Problematic equation in ti-86
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TIB: Problematic equation in ti-86
I have a little problem with finding root(s) of a
equation I've created. Actually it's a bunch of
equations that my program creates, but some pointers
would certainly be appreciated here. The problem is
mainly the behaviour of the solver as it returns
error if it doesn't manage to find a fitting
solution. That causes an embarrassing error from my
program, which means that it doesn't get a chance
to adjust the parameters and try again. My troubles
gets even worse because all these equations contain
complex numbers and may have either one or several
roots.
The most reliable solution seems to be making it a
graph and let the user find roots manually. That's
not very convenient though, and I'd rather just print
out the hard numbers.
Things would get much easier if I could find out the
number of roots and their approximate values, so that
I could give better guesses for the solver. Also graph
screen's root-function seems very robust and doesn't
give me troubles, but is there a way to use it from
a program? I'm prepared to use assembly if needed, but
basic would still be preferred.
I've attached a sample equation for you to work on, if
this particular question interests you. Good luck! :-)
Please send me any ideas you may have, everything goes!
Thanks!
- Janne -
y3.86e
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