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http://www.openoffice.org/issues/show_bug.cgi?id=26022





------- Additional comments from [EMAIL PROTECTED] Sun Jul 17 13:03:18 -0700 
2005 -------
It all comes down to this (in python interactive shell):

>>> import math
>>> print math.pow( 120, 148 )
5.23388788088e+307
>>> print math.pow( 120, 149 )
Traceback (most recent call last):
  File "<stdin>", line 1, in ?
OverflowError: math range error

In other words, a current binary float-point architecture can compute 120^148
but not 120^149, which is ultimately why POISSON(149;120;false) fails.

To work around this, we will need a new algorithm to compute a Poisson variable,
or use decimal float-point architecture (which is slower in performance, but
more accurate).

Kohei

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