mirrors/cpython
1
0
Fork 0
mirror of https://github.com/python/cpython.git synced 2025-09-14 12:46:49 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 12

Issue 6261: Clarify behavior of random.uniform().

Browse source
This commit is contained in:
Raymond Hettinger 2009-06-11 23:14:53 +00:00
parent 4efb5d0b82
commit 2c0cdca564
2 changed files with 3 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

2
Doc/library/random.rst
View file

@ -191,6 +191,8 @@ be found in any statistics text.
Return a random floating point number *N* such that ``a <= N <= b`` for Return a random floating point number *N* such that ``a <= N <= b`` for
``a <= b`` and ``b <= N <= a`` for ``b < a``. ``a <= b`` and ``b <= N <= a`` for ``b < a``.
The end-point value ``b`` may or may not be included in the range
depending on floating-point rounding in the equation ``a + (b-a) * random()``.
.. function:: triangular(low, high, mode) .. function:: triangular(low, high, mode)

2
Lib/random.py
View file

@ -349,7 +349,7 @@ class Random(_random.Random):
## -------------------- uniform distribution ------------------- ## -------------------- uniform distribution -------------------
def uniform(self, a, b): def uniform(self, a, b):
"""Get a random number in the range [a, b).""" "Get a random number in the range [a, b) or [a, b] depending on rounding."
return a + (b-a) * self.random() return a + (b-a) * self.random()
## -------------------- triangular -------------------- ## -------------------- triangular --------------------