Hi, Sorry, I was to fast in sending the mail to the list. I could find the error myself.
^operator binds stronger than -operator, so -3^3.2 calculates as -(3)^3.2 and not as (-3)^3.2 which results correctely in NaN. Alex ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help
