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soving polynomial equation with negative powers

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Hamed
Hamed 2013-7-4
-HELLO how can I find the zeros of this equation : ax^(-1)+bx^(-2)+cx^(-3)+...=0

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Walter Roberson
Walter Roberson 2013-7-4
If the last term is Z * x^(-P), then multiply the equation by x^P, transforming it into
a*x^(P-1) + b*x^(P-2) + c*x^(P-3) + .... Z = 0
then you can use roots()
If you think about this for a second, you can see that you can skip the roots() step if your coefficients are arranged in the right order.

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Hamed
Hamed 2013-7-4
thanks Walter.

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