From: Raymond Hettinger <rhettinger@users.noreply.github.com>
Date: Mon, 4 Sep 2017 23:51:06 +0000 (-0700)
Subject: random_triangular:  sqrt() is more accurate than **0.5 (#3317)
X-Git-Tag: v3.7.0a1~162
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=f5ea83f4864232fecc042ff0d1c2401807b19280;p=python

random_triangular:  sqrt() is more accurate than **0.5 (#3317)
---

diff --git a/Lib/random.py b/Lib/random.py
index e1c2c2bbcb..01c0c3d25f 100644
--- a/Lib/random.py
+++ b/Lib/random.py
@@ -388,7 +388,7 @@ class Random(_random.Random):
             u = 1.0 - u
             c = 1.0 - c
             low, high = high, low
-        return low + (high - low) * (u * c) ** 0.5
+        return low + (high - low) * _sqrt(u * c)
 
 ## -------------------- normal distribution --------------------