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

f5ea83f4 · Raymond Hettinger · GitHub · 8adc73c2 · f5ea83f4
Commit f5ea83f4 authored Sep 04, 2017 by Raymond Hettinger Committed by GitHub Sep 04, 2017
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Lib/random.py Lib/random.py +1 -1

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--- 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 --------------------