NaN Vs None

[Peck, Jon]

In choosing a way to represent a value of "no information" for a float, would it be better to use NaN or None?  None has the advantage of standard behavior across platforms, but NaN seems to propagate more easily – at least on Windows. For example,   NaN+1 = NaN but None+1 raises an exception.   Thanks in advance for any advice.     Jon K Peck (Kim) [EMAIL PROTECTED] 312-651-3435 233 S Wacker Dr Chicago, IL 60606

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