[commons-rng] branch master updated: Create the exponent to Math.pow explicitly as a double.

[aherbert]

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aherbert pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/commons-rng.git


The following commit(s) were added to refs/heads/master by this push:
     new 7ceb042  Create the exponent to Math.pow explicitly as a double.
7ceb042 is described below

commit 7ceb042716f223c611443678fd99eb78f0fd15f3
Author: Alex Herbert <aherb...@apache.org>
AuthorDate: Wed Sep 11 21:06:36 2019 +0100

    Create the exponent to Math.pow explicitly as a double.
---
 .../rng/sampling/distribution/AhrensDieterExponentialSampler.java       | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git 
a/commons-rng-sampling/src/main/java/org/apache/commons/rng/sampling/distribution/AhrensDieterExponentialSampler.java
 
b/commons-rng-sampling/src/main/java/org/apache/commons/rng/sampling/distribution/AhrensDieterExponentialSampler.java
index b6d23d3..b804210 100644
--- 
a/commons-rng-sampling/src/main/java/org/apache/commons/rng/sampling/distribution/AhrensDieterExponentialSampler.java
+++ 
b/commons-rng-sampling/src/main/java/org/apache/commons/rng/sampling/distribution/AhrensDieterExponentialSampler.java
@@ -58,7 +58,7 @@ public class AhrensDieterExponentialSampler
         double qi = 0;
 
         for (int i = 0; i < EXPONENTIAL_SA_QI.length; i++) {
-            qi += Math.pow(ln2, i + 1) / InternalUtils.factorial(i + 1);
+            qi += Math.pow(ln2, i + 1.0) / InternalUtils.factorial(i + 1);
             EXPONENTIAL_SA_QI[i] = qi;
         }
     }