*/
/*
- * GiNaC Copyright (C) 1999-2005 Johannes Gutenberg University Mainz, Germany
+ * GiNaC Copyright (C) 1999-2008 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 "times.h"
+#include <iostream>
+#include <vector>
+#include "ginac.h"
+#include "timer.h"
+using namespace std;
+using namespace GiNaC;
static unsigned toeplitz_det(unsigned size)
{
unsigned result = 0;
const symbol a("a"), b("b");
- ex p[9] = {ex("a",lst(a,b)),
+ ex p[10] = {ex("a",lst(a,b)),
ex("b",lst(a,b)),
ex("a+b",lst(a,b)),
ex("a^2+a*b+b^2",lst(a,b)),
ex("a^4+a^3*b+a^2*b^2+a*b^3+b^4",lst(a,b)),
ex("a^5+a^4*b+a^3*b^2-a^2*b^3+a*b^4+b^5",lst(a,b)),
ex("a^6+a^5*b+a^4*b^2+a^3*b^3+a^2*b^4+a*b^5+b^6",lst(a,b)),
- ex("a^7+a^6*b+a^5*b^2+a^4*b^3-a^3*b^4+a^2*b^5+a*b^6+b^7",lst(a,b))
+ ex("a^7+a^6*b+a^5*b^2+a^4*b^3-a^3*b^4+a^2*b^5+a*b^6+b^7",lst(a,b)),
+ ex("a^8+a^7*b+a^6*b^2+a^5*b^3+a^4*b^4+a^3*b^5+a^2*b^6+a*b^7+b^8",lst(a,b))
};
// construct Toeplitz matrix (diagonal structure: [[x,y,z],[y,x,y],[z,y,x]]):
unsigned result = 0;
cout << "timing determinant of polyvariate symbolic Toeplitz matrices" << flush;
- clog << "-------determinant of polyvariate symbolic Toeplitz matrices:" << endl;
vector<unsigned> sizes;
vector<double> times;
timer longines;
- sizes.push_back(6);
sizes.push_back(7);
sizes.push_back(8);
sizes.push_back(9);
+ sizes.push_back(10);
for (vector<unsigned>::iterator i=sizes.begin(); i!=sizes.end(); ++i) {
int count = 1;
cout << '.' << flush;
}
- if (!result) {
- cout << " passed ";
- clog << "(no output)" << endl;
- } else {
- cout << " failed ";
- }
// print the report:
cout << endl << " dim: ";
for (vector<unsigned>::iterator i=sizes.begin(); i!=sizes.end(); ++i)
cout << '\t' << *i << 'x' << *i;
cout << endl << " time/s:";
for (vector<double>::iterator i=times.begin(); i!=times.end(); ++i)
- cout << '\t' << int(1000*(*i))*0.001;
+ cout << '\t' << *i;
cout << endl;
return result;
}
+
+extern void randomify_symbol_serials();
+
+int main(int argc, char** argv)
+{
+ randomify_symbol_serials();
+ cout << setprecision(2) << showpoint;
+ return time_toeplitz();
+}