Re: symbolic solution of complex roots

It looks like there are some tips at the mathworld site that could
reduce the problem, thanks.

I'm interested in those roots that have both a positive real and
positive imaginary component. Any tricks to determine the number of
complex roots that lie in the (+,+) quadrant of the complex plane
(multiplicity is unimportant at this stage) ? The reason I ask is
that my numerical solution seems to find two roots that are close to
each other in the complex plane, but based on what I've read, it
doesn't make sense for two complex roots of a cubic equation to lie in
the same quadrant.

Thanks,

Ben

.

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