Hi Vladimir, 'NaN' means "Not a Number". It might produced by some uninitialized value, or the arithmetic of some invalid arithmetic operation, like sqrt(-1.0), 0/0, Inf - Inf, ...
You should first investigate why you get such values in your array, since simply ignoring them might be wrong. Paul Zimmermann -- To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
