X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=simgear%2Fmath%2Fleastsqs.hxx;h=3889cf7a3e15bdc1a4f5a9cea63dd7f33d843fff;hb=ce54997be569ebcac4222321e7ae3fecccd01324;hp=7c8e21d32aeeaf027129d163ddcae62817fedb59;hpb=75911b6c643d8e5597565bc63c34bdc2009a037a;p=simgear.git

diff --git a/simgear/math/leastsqs.hxx b/simgear/math/leastsqs.hxx
index 7c8e21d3..3889cf7a 100644
--- a/simgear/math/leastsqs.hxx
+++ b/simgear/math/leastsqs.hxx
@@ -5,7 +5,7 @@
 
 // Written by Curtis Olson, started September 1997.
 //
-// Copyright (C) 1997  Curtis L. Olson  - curt@infoplane.com
+// Copyright (C) 1997  Curtis L. Olson  - http://www.flightgear.org/~curt
 //
 // This library is free software; you can redistribute it and/or
 // modify it under the terms of the GNU Library General Public
@@ -17,10 +17,9 @@
 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 // Library General Public License for more details.
 //
-// You should have received a copy of the GNU Library General Public
-// License along with this library; if not, write to the
-// Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-// Boston, MA  02111-1307, USA.
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 //
 // $Id$
 
@@ -29,9 +28,9 @@
 #define _LEASTSQS_H
 
 
-#ifndef __cplusplus                                                          
+#ifndef __cplusplus
 # error This library requires C++
-#endif                                   
+#endif
 
 
 /**
@@ -42,12 +41,12 @@ Classical least squares fit:
 \f]
 
 \f[
-    b_1 = \frac{n * \sum_0^i (x_i*y_i) - \sum_0^i x_i* \sum_0^i y_i}
-          {n*\sum_0^i x_i^2 - (\sum_0^i x_i)^2}
+    b_1 = \frac{n * \sum_0^{i-1} (x_i*y_i) - \sum_0^{i-1} x_i* \sum_0^{i-1} y_i}
+          {n*\sum_0^{i-1} x_i^2 - (\sum_0^{i-1} x_i)^2}
 \f]
 
 \f[
-    b_0 = \frac{\sum_0^i y_i}{n} - b_1 * \frac{\sum_0^i x_i}{n}
+    b_0 = \frac{\sum_0^{i-1} y_i}{n} - b_1 * \frac{\sum_0^{i-1} x_i}{n}
 \f]
 */
 void least_squares(double *x, double *y, int n, double *m, double *b);