1 /** @file time_lw_D.cpp
3 * Test D from the paper "Comparison of Polynomial-Oriented CAS" by Robert H.
4 * Lewis and Michael Wester. */
7 * GiNaC Copyright (C) 1999-2007 Johannes Gutenberg University Mainz, Germany
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14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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17 * GNU General Public License for more details.
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21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
26 static unsigned test()
32 for (int i=1; i<=10; ++i)
33 s += i*y*pow(t,i)/pow(y + i*t,i);
37 if (s.subs(t==0)!=0) {
38 clog << "something very strange happened" << endl;
51 cout << "timing Lewis-Wester test D (normalized sum of rational fcns)" << flush;
52 clog << "-------Lewis-Wester test D (normalized sum of rational fcns):" << endl;
55 // correct for very small times:
59 } while ((time=rolex.read())<0.1 && !result);
64 clog << "(no output)" << endl;
68 cout << time/count << 's' << endl;