X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Flanguage%2Fexpressions%2Fhelpers.c;h=85705098a2df44e2ad0e39da0764f75684bc9407;hb=9c3064d66169931db09e9579b9594444d01a5af2;hp=a28f1a666ef2180ea17730c024dbfe19f4d1980e;hpb=49622888cd4954bf11544b2e43f58e523c9954b5;p=pspp-builds.git

diff --git a/src/language/expressions/helpers.c b/src/language/expressions/helpers.c
index a28f1a66..85705098 100644
--- a/src/language/expressions/helpers.c
+++ b/src/language/expressions/helpers.c
@@ -1,3 +1,19 @@
+/* PSPP - a program for statistical analysis.
+   Copyright (C) 2008 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>. */
+
 #include <config.h>
 #include "helpers.h"
 #include <gsl/gsl_roots.h>
@@ -573,14 +589,14 @@ 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));
 }
 
 double
 idf_fdist (double P, double df1, double df2)
 {
-  double temp = gslextras_cdf_beta_Pinv (P, df1 / 2, df2 / 2);
+  double temp = gsl_cdf_beta_Pinv (P, df1 / 2, df2 / 2);
   return temp * df2 / ((1. - temp) * df1);
 }