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  r68378 | mark.dickinson | 2009-01-07 17:48:33 +0000 (Wed, 07 Jan 2009) | 2 lines

  Issue #4869: clarify documentation for random.expovariate.
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Mark Dickinson 2009-01-07 17:54:07 +00:00
parent 1054f95b70
commit 2f947369b3
2 changed files with 10 additions and 6 deletions
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8
Lib/random.py
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@ -396,9 +396,11 @@ class Random(_random.Random):
def expovariate(self, lambd):
"""Exponential distribution.
lambd is 1.0 divided by the desired mean. (The parameter would be
called "lambda", but that is a reserved word in Python.) Returned
values range from 0 to positive infinity.
lambd is 1.0 divided by the desired mean. It should be
nonzero. (The parameter would be called "lambda", but that is
a reserved word in Python.) Returned values range from 0 to
positive infinity if lambd is positive, and from negative
infinity to 0 if lambd is negative.
"""
# lambd: rate lambd = 1/mean