ops, now i realize the mistake i was making. Thanks for the help people Tiago Katcipis escreveu: > im not understanding why is this a problem...i have this simple function > > def newton_divergente(x): > return math.pow(x, 1.0/3.0) > > but when x = -20 it returns this error > > return math.pow(x, 1.0/3.0) > ValueError: math domain error > > but why is that? is it impossible to calculate -20 ^ (1/3) ? > > here on my calculator i get the result -6,666666667, but python seens to > dont now the answer, why? am i doing something wrong? =/ > > thanks to everyone who tries do help > > best regards > > katcipis > >
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