X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Flanguage%2Fexpressions%2Fhelpers.c;h=85705098a2df44e2ad0e39da0764f75684bc9407;hb=c9d55afdda746d7e8b39e5a117c1644debbb0c75;hp=695c2335370cb19a46043f5e7d272ea04b21998d;hpb=83c4d7ff1c815395eb050aa6b16b6b740595cc92;p=pspp

diff --git a/src/language/expressions/helpers.c b/src/language/expressions/helpers.c
index 695c233537..85705098a2 100644
--- 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));
 }