Le lundi 06 juillet 2009 à 17:13 +0200, Nils Wagner a écrit : > IIRC, the coefficients of your polynomial are complex. > So, you cannot guarantee that the roots are complex > conjugate pairs.
Correct! If the construction is done with X1 and X1* treated separately, the coefficients appear to be complex. But if their processing is done simultaneously, the combination gives real coefficients. Let me modify this point and come back to tell you if it is the breakpoint... -- Fabrice Silva Laboratory of Mechanics and Acoustics - CNRS 31 chemin Joseph Aiguier, 13402 Marseille, France. _______________________________________________ Numpy-discussion mailing list Numpy-discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion