--- a
+++ b/inst/mutationsinglepoint.m
@@ -0,0 +1,50 @@
+## Copyright (C) 2008 Luca Favatella <slackydeb@gmail.com>
+##
+##
+## 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 2, 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; see the file COPYING.  If not, write to the Free
+## Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+## 02110-1301, USA.
+
+## -*- texinfo -*-
+## @deftypefn{Function File} {@var{mutationChildren} =} mutationsinglepoint (@var{parent})
+## Single point mutation.
+##
+## @seealso{ga, gaoptimset}
+## @end deftypefn
+
+## Author: Luca Favatella <slackydeb@gmail.com>
+## Version: 3.1
+
+function mutationChildren = mutationsinglepoint (parent)
+
+	%costanti
+	N_BIT_DOUBLE = 64;
+
+	%n e' il singolo punto della mutazione
+	%n potra' andare da 1 a (N_BIT_DOUBLE * length (parent))
+	n = double (uint64 (1 + (((N_BIT_DOUBLE * length (parent)) - 1) * rand())));
+
+	%mutazione a singolo punto
+	concatenated_mutationChildren = __ga_doubles2concatenated_bitstring__ (parent);
+	switch (concatenated_mutationChildren (n))
+		case '0'
+			concatenated_mutationChildren (n) = '1';
+		case '1'
+			concatenated_mutationChildren (n) = '0';
+		otherwise
+			error ("Una bitstring deve essere composta da soli caratteri 0 e 1.");
+	endswitch
+
+	mutationChildren = __ga_concatenated_bitstring2doubles__ (concatenated_mutationChildren);
+endfunction