1 /** @file exam_inifcns_nstdsums.cpp
3 * This test routine applies assorted tests on initially known higher level
7 * GiNaC Copyright (C) 1999-2003 Johannes Gutenberg University Mainz, Germany
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
29 ////////////////////////////////////////////////////////////////////////////////
30 ////////////////////////////////////////////////////////////////////////////////
32 ////////////////////////////////////////////////////////////////////////////////
33 ////////////////////////////////////////////////////////////////////////////////
37 * The data in the following include file has been produced by the following
38 * Mathematica (V4.1) script:
41 * x={2/10,1,14/10,30/10}
43 * st = OpenAppend["exam_inifcns_nstdsums_data.raw"]
44 * $NumberMarks = False
47 * Do[Write[st, i]; Write[st,j]; Write[st,x[[k]]+I*y[[l]]];
48 * Write[st,Chop[N[PolyLog[i,j,x[[k]]+I*y[[l]]],25]]],{i,3},{j,3}], {k,4}],{l,3}]
51 * Do[Write[st, i]; Write[st,j]; Write[st,-x[[k]]+I*y[[l]]];
52 * Write[st,Chop[N[PolyLog[i,j,-x[[k]]+I*y[[l]]],25]]],{i,3},{j,3}], {k,4}], {l,3}]
56 * and postprocessed by the following shell script
61 * cat exam_inifcns_nstdsums_data.raw | sed -e 's/\*\^/E/g' > exam_inifcns_nstdsums_data.raw2
62 * echo 'const char *data[] = {' > exam_inifcns_nstdsums_data.raw3
63 * for i in `cat exam_inifcns_nstdsums_data.raw2`; do echo \"$i\",; done >> exam_inifcns_nstdsums_data.raw3
64 * echo '"-999"};' >> exam_inifcns_nstdsums.h
68 #include "exam_inifcns_nstdsums.h"
71 // signals end of data
72 const int ENDMARK = -999;
75 static unsigned inifcns_test_S()
77 int digitsbuf = Digits;
80 ex prec = 5 * pow(10, -(int)Digits);
86 ex n(data[i++],symbol());
90 ex p(data[i++],symbol());
91 ex x(data[i++],symbol());
92 ex res(data[i++],symbol());
93 ex res2 = S(n, p, x).evalf();
94 if (abs(res-res2) > prec) {
95 clog << "S(" << n << "," << p << "," << x << ") seems to be wrong:" << endl;
96 clog << "GiNaC : " << res2 << endl;
97 clog << "Reference : " << res << endl;
98 clog << "Abs. Difference : " << res2-res << endl;
100 ex reldiff = abs((res2-res)/res2);
101 clog << "Rel. Difference : " << reldiff << endl;
106 cout << "." << flush;
116 ////////////////////////////////////////////////////////////////////////////////
117 ////////////////////////////////////////////////////////////////////////////////
119 ////////////////////////////////////////////////////////////////////////////////
120 ////////////////////////////////////////////////////////////////////////////////
123 static unsigned inifcns_test_HLi()
125 int digitsbuf = Digits;
127 ex prec = 5 * pow(10, -(int)Digits);
128 numeric almostone("0.999999999999999999");
133 res.append(H(lst(2,1),numeric(1)/2).hold() - (zeta(3)/8 - pow(log(2),3)/6));
134 res.append(H(lst(2,1,3),numeric(1)/3).hold() - Li(lst(2,1,3),lst(numeric(1)/3,1,1)).hold());
135 res.append(H(lst(2,1,3),numeric(98)/100).hold() - Li(lst(2,1,3),lst(numeric(98)/100,1,1)).hold());
136 res.append(H(lst(2,1,3),numeric(245)/100).hold() - Li(lst(2,1,3),lst(numeric(245)/100,1,1)).hold());
137 res.append(H(lst(4,1,1,1),numeric(1)/3).hold() - S(3,4,numeric(1)/3).hold());
138 res.append(H(lst(4,1,1,1),numeric(98)/100).hold() - S(3,4,numeric(98)/100).hold());
139 res.append(H(lst(4,1,1,1),numeric(245)/100).hold() - S(3,4,numeric(245)/100).hold());
140 res.append(H(lst(2,2,3),almostone).hold() - zeta(lst(2,2,3)));
141 res.append(H(lst(-3,-1,2,1),almostone).hold() - zeta(lst(3,1,2,1),lst(-1,1,-1,1)));
142 res.append(H(lst(-2,1,3),numeric(1)/3).hold() - -Li(lst(2,1,3),lst(-numeric(1)/3,-1,1)).hold());
143 res.append(H(lst(-2,1,3),numeric(98)/100).hold() - -Li(lst(2,1,3),lst(-numeric(98)/100,-1,1)).hold());
144 res.append(H(lst(-2,1,3),numeric(245)/100).hold() - -Li(lst(2,1,3),lst(-numeric(245)/100,-1,1)).hold());
145 res.append(H(lst(-3,1,-2,0,0),numeric(3)/10).hold() - convert_H_to_Li(lst(-3,1,-2,0,0),numeric(3)/10).eval());
147 for (lst::const_iterator it = res.begin(); it != res.end(); it++) {
148 ex diff = abs((*it).evalf());
150 clog << *it << " seems to be wrong: " << diff << endl;
153 cout << "." << flush;
162 ////////////////////////////////////////////////////////////////////////////////
163 ////////////////////////////////////////////////////////////////////////////////
165 ////////////////////////////////////////////////////////////////////////////////
166 ////////////////////////////////////////////////////////////////////////////////
169 static unsigned inifcns_test_zeta()
171 int digitsbuf = Digits;
177 res.append(zeta(lst(2,1)) - zeta(3));
178 res.append(zeta(lst(2,1,1,1,1)) - zeta(6));
179 res.append(zeta(lst(6,3)) - (zeta(9)*83/2 - zeta(2)*zeta(7)*21 - zeta(2)*zeta(2)*zeta(5)*12/5));
180 res.append(zeta(lst(4,2,3)) - (-zeta(9)*59 + zeta(2)*zeta(7)*28 + pow(zeta(2),2)*zeta(5)*4 -
181 pow(zeta(3),3)/3 + pow(zeta(2),3)*zeta(3)*8/21));
182 res.append(zeta(lst(3,1,3,1,3,1,3,1)) - (2*pow(Pi,16)/factorial(18)));
183 res.append(zeta(lst(2),lst(-1)) - -zeta(2)/2);
184 res.append(zeta(lst(1,2),lst(-1,1)) - (-zeta(3)/4 - zeta(lst(1),lst(-1))*zeta(2)/2));
185 res.append(zeta(lst(2,1,1),lst(-1,-1,1)) - (-pow(zeta(2),2)*23/40 - pow(zeta(lst(1),lst(-1)),2)*zeta(2)*3/4
186 - zeta(lst(3,1),lst(-1,1))*3/2 - zeta(lst(1),lst(-1))*zeta(3)*21/8));
188 for (lst::const_iterator it = res.begin(); it != res.end(); it++) {
190 ex prec = 5 * pow(10, -(int)Digits);
191 ex diff = abs((*it).evalf());
193 clog << *it << " seems to be wrong: " << diff << endl;
194 clog << "Digits: " << Digits << endl;
197 cout << "." << flush;
199 prec = 5 * pow(10, -(int)Digits);
200 diff = abs((*it).evalf());
202 clog << *it << " seems to be wrong: " << diff << endl;
203 clog << "Digits: " << Digits << endl;
206 cout << "." << flush;
215 unsigned exam_inifcns_nstdsums(void)
219 cout << "examining consistency of nestedsums functions" << flush;
220 clog << "----------consistency of nestedsums functions:" << endl;
222 cout << "zeta" << flush;
223 result += inifcns_test_zeta();
224 cout << "S" << flush;
225 result += inifcns_test_S();
226 cout << "H/Li" << flush;
227 result += inifcns_test_HLi();
230 cout << " passed " << endl;
231 clog << "(no output)" << endl;
233 cout << " failed " << endl;