* manipulations. */
/*
- * GiNaC Copyright (C) 1999-2007 Johannes Gutenberg University Mainz, Germany
+ * GiNaC Copyright (C) 1999-2014 Johannes Gutenberg University Mainz, Germany
*
* 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
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
-#include <iostream>
-#include <cstdlib> // rand(), RAND_MAX
#include "ginac.h"
-using namespace std;
using namespace GiNaC;
+#include <cstdlib> // for rand(), RAND_MAX
+#include <iostream>
+using namespace std;
+
extern const ex
sparse_tree(const symbol & x, const symbol & y, const symbol & z,
int level, bool trig = false, bool rational = true,