Merge commit 'origin/stable'

[pspp-builds.git] / src / language / expressions / helpers.c

diff --git a/src/language/expressions/helpers.c b/src/language/expressions/helpers.c
index 695c2335370cb19a46043f5e7d272ea04b21998d..85705098a2df44e2ad0e39da0764f75684bc9407 100644 (file)
--- a/src/language/expressions/helpers.c
+++ b/src/language/expressions/helpers.c
@@ -589,7 +589,7 @@ ncdf_beta (double x, double a, double b, double lambda)
 double
 cdf_bvnor (double x0, double x1, double r)
 {
-  double z = x0 * x0 - 2. * r * x0 * x1 + x1 * x1;
+  double z = pow2 (x0) - 2. * r * x0 * x1 + pow2 (x1);
   return exp (-z / (2. * (1 - r * r))) * (2. * M_PI * sqrt (1 - r * r));
 }