diff options
| -rw-r--r-- | Lib/random.py | 2 | ||||
| -rw-r--r-- | Misc/NEWS.d/next/Library/2020-08-01-00-51-15.bpo-41421.dHKRVB.rst | 3 |
2 files changed, 4 insertions, 1 deletions
diff --git a/Lib/random.py b/Lib/random.py index a6454f5..37f7111 100644 --- a/Lib/random.py +++ b/Lib/random.py @@ -749,7 +749,7 @@ class Random(_random.Random): # Jain, pg. 495 u = 1.0 - self.random() - return 1.0 / u ** (1.0 / alpha) + return u ** (-1.0 / alpha) def weibullvariate(self, alpha, beta): """Weibull distribution. diff --git a/Misc/NEWS.d/next/Library/2020-08-01-00-51-15.bpo-41421.dHKRVB.rst b/Misc/NEWS.d/next/Library/2020-08-01-00-51-15.bpo-41421.dHKRVB.rst new file mode 100644 index 0000000..cf291c6 --- /dev/null +++ b/Misc/NEWS.d/next/Library/2020-08-01-00-51-15.bpo-41421.dHKRVB.rst @@ -0,0 +1,3 @@ +Make an algebraic simplification to random.paretovariate(). It now is +slightly less subject to round-off error and is slightly faster. Inputs that +used to cause ZeroDivisionError now cause an OverflowError instead. |