X-Git-Url: https://bilbo.iut-bm.univ-fcomte.fr/and/gitweb/loba.git/blobdiff_plain/df659008699fecbb4fe12bed55e6fb5beafbaaa4..401d84724809275a3243d0c711864fa892949f41:/statistics.h

diff --git a/statistics.h b/statistics.h
index 7e3fb2e..28aa913 100644
--- a/statistics.h
+++ b/statistics.h
@@ -25,7 +25,7 @@ public:
     double get_sum() const      { return sum;                  }
     double get_mean() const     { return mean;                 }
     double get_variance() const { return sqdiff_sum / count;   }
-    double get_stddev() const   { return sqrt(get_variance()); }
+    double get_stddev() const   { return std::sqrt(get_variance()); }
 
 private:
     int count;