*
* The functions are:
* classical polylogarithm Li(n,x)
- * multiple polylogarithm Li(lst(m_1,...,m_k),lst(x_1,...,x_k))
- * G(lst(a_1,...,a_k),y) or G(lst(a_1,...,a_k),lst(s_1,...,s_k),y)
+ * multiple polylogarithm Li(lst{m_1,...,m_k},lst{x_1,...,x_k})
+ * G(lst{a_1,...,a_k},y) or G(lst{a_1,...,a_k},lst{s_1,...,s_k},y)
* Nielsen's generalized polylogarithm S(n,p,x)
- * harmonic polylogarithm H(m,x) or H(lst(m_1,...,m_k),x)
- * multiple zeta value zeta(m) or zeta(lst(m_1,...,m_k))
- * alternating Euler sum zeta(m,s) or zeta(lst(m_1,...,m_k),lst(s_1,...,s_k))
+ * harmonic polylogarithm H(m,x) or H(lst{m_1,...,m_k},x)
+ * multiple zeta value zeta(m) or zeta(lst{m_1,...,m_k})
+ * alternating Euler sum zeta(m,s) or zeta(lst{m_1,...,m_k},lst{s_1,...,s_k})
*
* Some remarks:
*
* 0, 1 and -1 --- or in compactified --- a string with zeros in front of 1 or -1 is written as a single
* number --- notation.
*
- * - All functions can be nummerically evaluated with arguments in the whole complex plane. The parameters
+ * - All functions can be numerically evaluated with arguments in the whole complex plane. The parameters
* for Li, zeta and S must be positive integers. If you want to have an alternating Euler sum, you have
* to give the signs of the parameters as a second argument s to zeta(m,s) containing 1 and -1.
*
*/
/*
- * GiNaC Copyright (C) 1999-2009 Johannes Gutenberg University Mainz, Germany
+ * GiNaC Copyright (C) 1999-2016 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
// lookup table for factors built from Bernoulli numbers
// see fill_Xn()
-std::vector<std::vector<cln::cl_N> > Xn;
+std::vector<std::vector<cln::cl_N>> Xn;
// initial size of Xn that should suffice for 32bit machines (must be even)
const int xninitsizestep = 26;
int xninitsize = xninitsizestep;
} else {
// choose the faster algorithm
if (cln::abs(cln::realpart(x)) > 0.75) {
- return -Li2_do_sum(1-x) - cln::log(x) * cln::log(1-x) + cln::zeta(2);
+ if ( x == 1 ) {
+ return cln::zeta(2);
+ } else {
+ return -Li2_do_sum(1-x) - cln::log(x) * cln::log(1-x) + cln::zeta(2);
+ }
} else {
return -Li2_do_sum_Xn(1-x) - cln::log(x) * cln::log(1-x) + cln::zeta(2);
}
return Lin_do_sum_Xn(n, x);
}
} else {
- cln::cl_N result = -cln::expt(cln::log(x), n-1) * cln::log(1-x) / cln::factorial(n-1);
+ cln::cl_N result = 0;
+ if ( x != 1 ) result = -cln::expt(cln::log(x), n-1) * cln::log(1-x) / cln::factorial(n-1);
for (int j=0; j<n-1; j++) {
result = result + (S_num(n-j-1, 1, 1) - S_num(1, n-j-1, 1-x))
* cln::expt(cln::log(x), j) / cln::factorial(j);
// forward declaration
ex shuffle_G(const Gparameter & a0, const Gparameter & a1, const Gparameter & a2,
const Gparameter& pendint, const Gparameter& a_old, int scale,
- const exvector& gsyms);
+ const exvector& gsyms, bool flag_trailing_zeros_only);
// G transformation [VSW]
ex G_transform(const Gparameter& pendint, const Gparameter& a, int scale,
- const exvector& gsyms)
+ const exvector& gsyms, bool flag_trailing_zeros_only)
{
// main recursion routine
//
if (trailing_zeros > 0) {
ex result;
Gparameter new_a(a.begin(), a.end()-1);
- result += G_eval1(0, scale, gsyms) * G_transform(pendint, new_a, scale, gsyms);
+ result += G_eval1(0, scale, gsyms) * G_transform(pendint, new_a, scale, gsyms, flag_trailing_zeros_only);
for (Gparameter::const_iterator it = a.begin(); it != firstzero; ++it) {
Gparameter new_a(a.begin(), it);
new_a.push_back(0);
new_a.insert(new_a.end(), it, a.end()-1);
- result -= G_transform(pendint, new_a, scale, gsyms);
+ result -= G_transform(pendint, new_a, scale, gsyms, flag_trailing_zeros_only);
}
return result / trailing_zeros;
}
- // convergence case
- if (convergent) {
+ // convergence case or flag_trailing_zeros_only
+ if (convergent || flag_trailing_zeros_only) {
if (pendint.size() > 0) {
return G_eval(convert_pending_integrals_G(pendint),
pendint.front(), gsyms)*
Gparameter a1(a.begin(),min_it+1);
Gparameter a2(min_it+1,a.end());
- ex result = G_transform(pendint, a2, scale, gsyms)*
- G_transform(empty, a1, scale, gsyms);
+ ex result = G_transform(pendint, a2, scale, gsyms, flag_trailing_zeros_only)*
+ G_transform(empty, a1, scale, gsyms, flag_trailing_zeros_only);
- result -= shuffle_G(empty, a1, a2, pendint, a, scale, gsyms);
+ result -= shuffle_G(empty, a1, a2, pendint, a, scale, gsyms, flag_trailing_zeros_only);
return result;
}
Gparameter new_pendint = prepare_pending_integrals(pendint, a[min_it_pos]);
Gparameter new_a = a;
new_a[min_it_pos] = 0;
- ex result = G_transform(empty, new_a, scale, gsyms);
+ ex result = G_transform(empty, new_a, scale, gsyms, flag_trailing_zeros_only);
if (pendint.size() > 0) {
result *= trailing_zeros_G(convert_pending_integrals_G(pendint),
pendint.front(), gsyms);
new_pendint.push_back(*changeit);
result -= trailing_zeros_G(convert_pending_integrals_G(new_pendint),
new_pendint.front(), gsyms)*
- G_transform(empty, new_a, scale, gsyms);
+ G_transform(empty, new_a, scale, gsyms, flag_trailing_zeros_only);
int buffer = *changeit;
*changeit = *min_it;
- result += G_transform(new_pendint, new_a, scale, gsyms);
+ result += G_transform(new_pendint, new_a, scale, gsyms, flag_trailing_zeros_only);
*changeit = buffer;
new_pendint.pop_back();
--changeit;
new_pendint.push_back(*changeit);
result += trailing_zeros_G(convert_pending_integrals_G(new_pendint),
new_pendint.front(), gsyms)*
- G_transform(empty, new_a, scale, gsyms);
+ G_transform(empty, new_a, scale, gsyms, flag_trailing_zeros_only);
*changeit = *min_it;
- result -= G_transform(new_pendint, new_a, scale, gsyms);
+ result -= G_transform(new_pendint, new_a, scale, gsyms, flag_trailing_zeros_only);
} else {
// smallest at the front
new_pendint.push_back(scale);
result += trailing_zeros_G(convert_pending_integrals_G(new_pendint),
new_pendint.front(), gsyms)*
- G_transform(empty, new_a, scale, gsyms);
+ G_transform(empty, new_a, scale, gsyms, flag_trailing_zeros_only);
new_pendint.back() = *changeit;
result -= trailing_zeros_G(convert_pending_integrals_G(new_pendint),
new_pendint.front(), gsyms)*
- G_transform(empty, new_a, scale, gsyms);
+ G_transform(empty, new_a, scale, gsyms, flag_trailing_zeros_only);
*changeit = *min_it;
- result += G_transform(new_pendint, new_a, scale, gsyms);
+ result += G_transform(new_pendint, new_a, scale, gsyms, flag_trailing_zeros_only);
}
return result;
}
// for the one that is equal to a_old
ex shuffle_G(const Gparameter & a0, const Gparameter & a1, const Gparameter & a2,
const Gparameter& pendint, const Gparameter& a_old, int scale,
- const exvector& gsyms)
+ const exvector& gsyms, bool flag_trailing_zeros_only)
{
if (a1.size()==0 && a2.size()==0) {
// veto the one configuration we don't want
if ( a0 == a_old ) return 0;
- return G_transform(pendint, a0, scale, gsyms);
+ return G_transform(pendint, a0, scale, gsyms, flag_trailing_zeros_only);
}
if (a2.size()==0) {
Gparameter empty;
Gparameter aa0 = a0;
aa0.insert(aa0.end(),a1.begin(),a1.end());
- return shuffle_G(aa0, empty, empty, pendint, a_old, scale, gsyms);
+ return shuffle_G(aa0, empty, empty, pendint, a_old, scale, gsyms, flag_trailing_zeros_only);
}
if (a1.size()==0) {
Gparameter empty;
Gparameter aa0 = a0;
aa0.insert(aa0.end(),a2.begin(),a2.end());
- return shuffle_G(aa0, empty, empty, pendint, a_old, scale, gsyms);
+ return shuffle_G(aa0, empty, empty, pendint, a_old, scale, gsyms, flag_trailing_zeros_only);
}
Gparameter a1_removed(a1.begin()+1,a1.end());
a01.push_back( a1[0] );
a02.push_back( a2[0] );
- return shuffle_G(a01, a1_removed, a2, pendint, a_old, scale, gsyms)
- + shuffle_G(a02, a1, a2_removed, pendint, a_old, scale, gsyms);
+ return shuffle_G(a01, a1_removed, a2, pendint, a_old, scale, gsyms, flag_trailing_zeros_only)
+ + shuffle_G(a02, a1, a2_removed, pendint, a_old, scale, gsyms, flag_trailing_zeros_only);
}
// handles the transformations and the numerical evaluation of G
std::vector<int> qlsts;
for (std::size_t j = r; j >= 1; --j) {
qlstx.push_back(cln::cl_N(1) - x[j-1]);
- if (instanceof(x[j-1], cln::cl_R_ring) &&
- realpart(x[j-1]) > 1 && realpart(x[j-1]) <= 2) {
- qlsts.push_back(s[j-1]);
+ if (instanceof(x[j-1], cln::cl_R_ring) && realpart(x[j-1]) > 1) {
+ qlsts.push_back(1);
} else {
qlsts.push_back(-s[j-1]);
}
return result;
}
+class less_object_for_cl_N
+{
+public:
+ bool operator() (const cln::cl_N & a, const cln::cl_N & b) const
+ {
+ // absolute value?
+ if (abs(a) != abs(b))
+ return (abs(a) < abs(b)) ? true : false;
+
+ // complex phase?
+ if (phase(a) != phase(b))
+ return (phase(a) < phase(b)) ? true : false;
+
+ // equal, therefore "less" is not true
+ return false;
+ }
+};
+
+
// convergence transformation, used for numerical evaluation of G function.
// the parameter x, s and y must only contain numerics
static cln::cl_N
G_do_trafo(const std::vector<cln::cl_N>& x, const std::vector<int>& s,
- const cln::cl_N& y)
+ const cln::cl_N& y, bool flag_trailing_zeros_only)
{
// sort (|x|<->position) to determine indices
- typedef std::multimap<cln::cl_R, std::size_t> sortmap_t;
+ typedef std::multimap<cln::cl_N, std::size_t, less_object_for_cl_N> sortmap_t;
sortmap_t sortmap;
std::size_t size = 0;
for (std::size_t i = 0; i < x.size(); ++i) {
if (!zerop(x[i])) {
- sortmap.insert(std::make_pair(abs(x[i]), i));
+ sortmap.insert(std::make_pair(x[i], i));
++size;
}
}
// include upper limit (scale)
- sortmap.insert(std::make_pair(abs(y), x.size()));
+ sortmap.insert(std::make_pair(y, x.size()));
// generate missing dummy-symbols
int i = 1;
// do transformation
Gparameter pendint;
- ex result = G_transform(pendint, a, scale, gsyms);
+ ex result = G_transform(pendint, a, scale, gsyms, flag_trailing_zeros_only);
// replace dummy symbols with their values
- result = result.eval().expand();
+ result = result.expand();
result = result.subs(subslst).evalf();
if (!is_a<numeric>(result))
throw std::logic_error("G_do_trafo: G_transform returned non-numeric result");
// check for convergence and necessary accelerations
bool need_trafo = false;
bool need_hoelder = false;
+ bool have_trailing_zero = false;
std::size_t depth = 0;
for (std::size_t i = 0; i < x.size(); ++i) {
if (!zerop(x[i])) {
need_hoelder = true;
}
}
- if (zerop(x[x.size() - 1]))
+ if (zerop(x.back())) {
+ have_trailing_zero = true;
need_trafo = true;
+ }
if (depth == 1 && x.size() == 2 && !need_trafo)
return - Li_projection(2, y/x[1], cln::float_format(Digits));
// do acceleration transformation (hoelder convolution [BBB])
- if (need_hoelder)
+ if (need_hoelder && !have_trailing_zero)
return G_do_hoelder(x, s, y);
// convergence transformation
if (need_trafo)
- return G_do_trafo(x, s, y);
+ return G_do_trafo(x, s, y, have_trailing_zero);
// do summation
std::vector<cln::cl_N> newx;
s.push_back(1);
}
const cln::cl_N xi = ex_to<numeric>(*itx).to_cl_N();
- newx.push_back(factor/xi);
factor = factor/xi;
- s.push_back(1);
+ newx.push_back(factor);
+ if ( !instanceof(factor, cln::cl_R_ring) && imagpart(factor) < 0 ) {
+ s.push_back(-1);
+ }
+ else {
+ s.push_back(1);
+ }
}
return numeric(cln::cl_N(1 & m.nops() ? - 1 : 1)*G_numeric(newx, s, cln::cl_N(1)));
}
static ex G2_evalf(const ex& x_, const ex& y)
{
- if (!y.info(info_flags::positive)) {
+ if ((!y.info(info_flags::numeric)) || (!y.info(info_flags::positive))) {
return G(x_, y).hold();
}
- lst x = is_a<lst>(x_) ? ex_to<lst>(x_) : lst(x_);
+ lst x = is_a<lst>(x_) ? ex_to<lst>(x_) : lst{x_};
if (x.nops() == 0) {
return _ex1;
}
{
//TODO eval to MZV or H or S or Lin
- if (!y.info(info_flags::positive)) {
+ if ((!y.info(info_flags::numeric)) || (!y.info(info_flags::positive))) {
return G(x_, y).hold();
}
- lst x = is_a<lst>(x_) ? ex_to<lst>(x_) : lst(x_);
+ lst x = is_a<lst>(x_) ? ex_to<lst>(x_) : lst{x_};
if (x.nops() == 0) {
return _ex1;
}
}
+// option do_not_evalf_params() removed.
unsigned G2_SERIAL::serial = function::register_new(function_options("G", 2).
evalf_func(G2_evalf).
eval_func(G2_eval).
- do_not_evalf_params().
overloaded(2));
//TODO
// derivative_func(G2_deriv).
static ex G3_evalf(const ex& x_, const ex& s_, const ex& y)
{
- if (!y.info(info_flags::positive)) {
+ if ((!y.info(info_flags::numeric)) || (!y.info(info_flags::positive))) {
return G(x_, s_, y).hold();
}
- lst x = is_a<lst>(x_) ? ex_to<lst>(x_) : lst(x_);
- lst s = is_a<lst>(s_) ? ex_to<lst>(s_) : lst(s_);
+ lst x = is_a<lst>(x_) ? ex_to<lst>(x_) : lst{x_};
+ lst s = is_a<lst>(s_) ? ex_to<lst>(s_) : lst{s_};
if (x.nops() != s.nops()) {
return G(x_, s_, y).hold();
}
all_zero = false;
}
if ( ex_to<numeric>(*itx).is_real() ) {
- if ( *its >= 0 ) {
+ if ( ex_to<numeric>(*itx).is_positive() ) {
+ if ( *its >= 0 ) {
+ sn.push_back(1);
+ }
+ else {
+ sn.push_back(-1);
+ }
+ } else {
sn.push_back(1);
}
- else {
- sn.push_back(-1);
- }
}
else {
if ( ex_to<numeric>(*itx).imag() > 0 ) {
{
//TODO eval to MZV or H or S or Lin
- if (!y.info(info_flags::positive)) {
+ if ((!y.info(info_flags::numeric)) || (!y.info(info_flags::positive))) {
return G(x_, s_, y).hold();
}
- lst x = is_a<lst>(x_) ? ex_to<lst>(x_) : lst(x_);
- lst s = is_a<lst>(s_) ? ex_to<lst>(s_) : lst(s_);
+ lst x = is_a<lst>(x_) ? ex_to<lst>(x_) : lst{x_};
+ lst s = is_a<lst>(s_) ? ex_to<lst>(s_) : lst{s_};
if (x.nops() != s.nops()) {
return G(x_, s_, y).hold();
}
all_zero = false;
}
if ( ex_to<numeric>(*itx).is_real() ) {
- if ( *its >= 0 ) {
+ if ( ex_to<numeric>(*itx).is_positive() ) {
+ if ( *its >= 0 ) {
+ sn.push_back(1);
+ }
+ else {
+ sn.push_back(-1);
+ }
+ } else {
sn.push_back(1);
}
- else {
- sn.push_back(-1);
- }
}
else {
if ( ex_to<numeric>(*itx).imag() > 0 ) {
}
+// option do_not_evalf_params() removed.
+// This is safe: in the code above it only matters if s_ > 0 or s_ < 0,
+// s_ is allowed to be of floating type.
unsigned G3_SERIAL::serial = function::register_new(function_options("G", 3).
evalf_func(G3_evalf).
eval_func(G3_eval).
- do_not_evalf_params().
overloaded(2));
//TODO
// derivative_func(G3_deriv).
}
}
if (is_zeta) {
- return zeta(m_,x_);
+ lst newx;
+ for (lst::const_iterator itx = x.begin(); itx != x.end(); ++itx) {
+ GINAC_ASSERT((*itx == _ex1) || (*itx == _ex_1));
+ // XXX: 1 + 0.0*I is considered equal to 1. However
+ // the former is a not automatically converted
+ // to a real number. Do the conversion explicitly
+ // to avoid the "numeric::operator>(): complex inequality"
+ // exception (and similar problems).
+ newx.append(*itx != _ex_1 ? _ex1 : _ex_1);
+ }
+ return zeta(m_, newx);
}
if (is_H) {
ex prefactor;
{
if (is_a<lst>(m) || is_a<lst>(x)) {
// multiple polylog
- epvector seq;
- seq.push_back(expair(Li(m, x), 0));
- return pseries(rel, seq);
+ epvector seq { expair(Li(m, x), 0) };
+ return pseries(rel, std::move(seq));
}
// classical polylog
// substitute the argument's series expansion
ser = ser.subs(s==x.series(rel, order), subs_options::no_pattern);
// maybe that was terminating, so add a proper order term
- epvector nseq;
- nseq.push_back(expair(Order(_ex1), order));
- ser += pseries(rel, nseq);
+ epvector nseq { expair(Order(_ex1), order) };
+ ser += pseries(rel, std::move(nseq));
// reexpanding it will collapse the series again
return ser.series(rel, order);
}
if (is_a<lst>(m_)) {
m = ex_to<lst>(m_);
} else {
- m = lst(m_);
+ m = lst{m_};
}
lst x;
if (is_a<lst>(x_)) {
x = ex_to<lst>(x_);
} else {
- x = lst(x_);
+ x = lst{x_};
}
c.s << "\\mathrm{Li}_{";
lst::const_iterator itm = m.begin();
// lookup table for special Euler-Zagier-Sums (used for S_n,p(x))
// see fill_Yn()
-std::vector<std::vector<cln::cl_N> > Yn;
+std::vector<std::vector<cln::cl_N>> Yn;
int ynsize = 0; // number of Yn[]
int ynlength = 100; // initial length of all Yn[i]
prec = cln::float_format(cln::the<cln::cl_F>(cln::imagpart(value)));
// [Kol] (5.3)
- if ((cln::realpart(value) < -0.5) || (n == 0) || ((cln::abs(value) <= 1) && (cln::abs(value) > 0.95))) {
+ // the condition abs(1-value)>1 avoids an infinite recursion in the region abs(value)<=1 && abs(value)>0.95 && abs(1-value)<=1 && abs(1-value)>0.95
+ // we don't care here about abs(value)<1 && real(value)>0.5, this will be taken care of in S_projection
+ if ((cln::realpart(value) < -0.5) || (n == 0) || ((cln::abs(value) <= 1) && (cln::abs(value) > 0.95) && (cln::abs(1-value) > 1) )) {
cln::cl_N result = cln::expt(cln::cl_I(-1),p) * cln::expt(cln::log(value),n)
* cln::expt(cln::log(1-value),p) / cln::factorial(n) / cln::factorial(p);
return result;
}
+
+ if ((cln::abs(value) > 0.95) && (cln::abs(value-9.53) < 9.47)) {
+ lst m;
+ m.append(n+1);
+ for (int s=0; s<p-1; s++)
+ m.append(1);
+
+ ex res = H(m,numeric(value)).evalf();
+ return ex_to<numeric>(res).to_cl_N();
+ }
else {
return S_projection(n, p, value, prec);
}
return _ex0;
}
if (x == 1) {
- lst m(n+1);
+ lst m{n+1};
for (int i=ex_to<numeric>(p).to_int()-1; i>0; i--) {
m.append(1);
}
// substitute the argument's series expansion
ser = ser.subs(s==x.series(rel, order), subs_options::no_pattern);
// maybe that was terminating, so add a proper order term
- epvector nseq;
- nseq.push_back(expair(Order(_ex1), order));
- ser += pseries(rel, nseq);
+ epvector nseq { expair(Order(_ex1), order) };
+ ser += pseries(rel, std::move(nseq));
// reexpanding it will collapse the series again
return ser.series(rel, order);
}
// recursivly transforms H to corresponding multiple polylogarithms
struct map_trafo_H_convert_to_Li : public map_function
{
- ex operator()(const ex& e)
+ ex operator()(const ex& e) override
{
if (is_a<add>(e) || is_a<mul>(e)) {
return e.map(*this);
if (is_a<lst>(e.op(0))) {
parameter = ex_to<lst>(e.op(0));
} else {
- parameter = lst(e.op(0));
+ parameter = lst{e.op(0)};
}
ex arg = e.op(1);
// recursivly transforms H to corresponding zetas
struct map_trafo_H_convert_to_zeta : public map_function
{
- ex operator()(const ex& e)
+ ex operator()(const ex& e) override
{
if (is_a<add>(e) || is_a<mul>(e)) {
return e.map(*this);
if (is_a<lst>(e.op(0))) {
parameter = ex_to<lst>(e.op(0));
} else {
- parameter = lst(e.op(0));
+ parameter = lst{e.op(0)};
}
lst m;
// remove trailing zeros from H-parameters
struct map_trafo_H_reduce_trailing_zeros : public map_function
{
- ex operator()(const ex& e)
+ ex operator()(const ex& e) override
{
if (is_a<add>(e) || is_a<mul>(e)) {
return e.map(*this);
if (is_a<lst>(e.op(0))) {
parameter = ex_to<lst>(e.op(0));
} else {
- parameter = lst(e.op(0));
+ parameter = lst{e.op(0)};
}
ex arg = e.op(1);
if (parameter.op(parameter.nops()-1) == 0) {
res.append(*itm);
itm++;
while (itx != x.end()) {
- signum *= (*itx > 0) ? 1 : -1;
+ GINAC_ASSERT((*itx == _ex1) || (*itx == _ex_1));
+ // XXX: 1 + 0.0*I is considered equal to 1. However the former
+ // is not automatically converted to a real number.
+ // Do the conversion explicitly to avoid the
+ // "numeric::operator>(): complex inequality" exception.
+ signum *= (*itx != _ex_1) ? 1 : -1;
pf *= signum;
res.append((*itm) * signum);
itm++;
if (h2nops > 1) {
hlong = ex_to<lst>(h2.op(0));
} else {
- hlong = h2.op(0).op(0);
+ hlong = lst{h2.op(0).op(0)};
}
}
for (std::size_t i=0; i<=hlong.nops(); i++) {
// applies trafo_H_mult recursively on expressions
struct map_trafo_H_mult : public map_function
{
- ex operator()(const ex& e)
+ ex operator()(const ex& e) override
{
if (is_a<add>(e)) {
return e.map(*this);
ex addzeta = convert_H_to_zeta(newparameter);
return e.subs(h == (addzeta-H(newparameter, h.op(1)).hold())).expand();
} else {
- return e * (-H(lst(0),1/arg).hold());
+ return e * (-H(lst{ex(0)},1/arg).hold());
}
}
newparameter.prepend(1);
return e.subs(h == H(newparameter, h.op(1)).hold());
} else {
- return e * H(lst(1),1-arg).hold();
+ return e * H(lst{ex(1)},1-arg).hold();
}
}
ex addzeta = convert_H_to_zeta(newparameter);
return e.subs(h == (addzeta-H(newparameter, h.op(1)).hold())).expand();
} else {
- ex addzeta = convert_H_to_zeta(lst(-1));
- return (e * (addzeta - H(lst(-1),1/arg).hold())).expand();
+ ex addzeta = convert_H_to_zeta(lst{ex(-1)});
+ return (e * (addzeta - H(lst{ex(-1)},1/arg).hold())).expand();
}
}
newparameter.prepend(-1);
return e.subs(h == H(newparameter, h.op(1)).hold()).expand();
} else {
- return (e * H(lst(-1),(1-arg)/(1+arg)).hold()).expand();
+ return (e * H(lst{ex(-1)},(1-arg)/(1+arg)).hold()).expand();
}
}
newparameter.prepend(1);
return e.subs(h == H(newparameter, h.op(1)).hold()).expand();
} else {
- return (e * H(lst(1),(1-arg)/(1+arg)).hold()).expand();
+ return (e * H(lst{ex(1)},(1-arg)/(1+arg)).hold()).expand();
}
}
// do x -> 1-x transformation
struct map_trafo_H_1mx : public map_function
{
- ex operator()(const ex& e)
+ ex operator()(const ex& e) override
{
if (is_a<add>(e) || is_a<mul>(e)) {
return e.map(*this);
// leading one
map_trafo_H_1mx recursion;
map_trafo_H_mult unify;
- ex res = H(lst(1), arg).hold() * H(newparameter, arg).hold();
+ ex res = H(lst{ex(1)}, arg).hold() * H(newparameter, arg).hold();
std::size_t firstzero = 0;
while (parameter.op(firstzero) == 1) {
firstzero++;
// do x -> 1/x transformation
struct map_trafo_H_1overx : public map_function
{
- ex operator()(const ex& e)
+ ex operator()(const ex& e) override
{
if (is_a<add>(e) || is_a<mul>(e)) {
return e.map(*this);
}
if (allthesame) {
map_trafo_H_mult unify;
- return unify((pow(H(lst(-1),1/arg).hold() - H(lst(0),1/arg).hold(), parameter.nops())
+ return unify((pow(H(lst{ex(-1)},1/arg).hold() - H(lst{ex(0)},1/arg).hold(), parameter.nops())
/ factorial(parameter.nops())).expand());
}
} else {
}
if (allthesame) {
map_trafo_H_mult unify;
- return unify((pow(H(lst(1),1/arg).hold() + H(lst(0),1/arg).hold() + H_polesign, parameter.nops())
+ return unify((pow(H(lst{ex(1)},1/arg).hold() + H(lst{ex(0)},1/arg).hold() + H_polesign, parameter.nops())
/ factorial(parameter.nops())).expand());
}
}
// leading one
map_trafo_H_1overx recursion;
map_trafo_H_mult unify;
- ex res = H(lst(1), arg).hold() * H(newparameter, arg).hold();
+ ex res = H(lst{ex(1)}, arg).hold() * H(newparameter, arg).hold();
std::size_t firstzero = 0;
while (parameter.op(firstzero) == 1) {
firstzero++;
// do x -> (1-x)/(1+x) transformation
struct map_trafo_H_1mxt1px : public map_function
{
- ex operator()(const ex& e)
+ ex operator()(const ex& e) override
{
if (is_a<add>(e) || is_a<mul>(e)) {
return e.map(*this);
}
if (allthesame) {
map_trafo_H_mult unify;
- return unify((pow(-H(lst(1),(1-arg)/(1+arg)).hold() - H(lst(-1),(1-arg)/(1+arg)).hold(), parameter.nops())
+ return unify((pow(-H(lst{ex(1)},(1-arg)/(1+arg)).hold() - H(lst{ex(-1)},(1-arg)/(1+arg)).hold(), parameter.nops())
/ factorial(parameter.nops())).expand());
}
} else if (parameter.op(0) == -1) {
}
if (allthesame) {
map_trafo_H_mult unify;
- return unify((pow(log(2) - H(lst(-1),(1-arg)/(1+arg)).hold(), parameter.nops())
+ return unify((pow(log(2) - H(lst{ex(-1)},(1-arg)/(1+arg)).hold(), parameter.nops())
/ factorial(parameter.nops())).expand());
}
} else {
}
if (allthesame) {
map_trafo_H_mult unify;
- return unify((pow(-log(2) - H(lst(0),(1-arg)/(1+arg)).hold() + H(lst(-1),(1-arg)/(1+arg)).hold(), parameter.nops())
+ return unify((pow(-log(2) - H(lst{ex(0)},(1-arg)/(1+arg)).hold() + H(lst{ex(-1)},(1-arg)/(1+arg)).hold(), parameter.nops())
/ factorial(parameter.nops())).expand());
}
}
// leading one
map_trafo_H_1mxt1px recursion;
map_trafo_H_mult unify;
- ex res = H(lst(1), arg).hold() * H(newparameter, arg).hold();
+ ex res = H(lst{ex(1)}, arg).hold() * H(newparameter, arg).hold();
std::size_t firstzero = 0;
while (parameter.op(firstzero) == 1) {
firstzero++;
// x -> 1/x
if (cln::abs(x) >= 2.0) {
map_trafo_H_1overx trafo;
- res *= trafo(H(m, xtemp));
+ res *= trafo(H(m, xtemp).hold());
if (cln::imagpart(x) <= 0) {
res = res.subs(H_polesign == -I*Pi);
} else {
if (cln::abs(x-9.53) <= 9.47) {
// x -> (1-x)/(1+x)
map_trafo_H_1mxt1px trafo;
- res *= trafo(H(m, xtemp));
+ res *= trafo(H(m, xtemp).hold());
} else {
// x -> 1-x
if (has_minus_one) {
return filter(H(m, numeric(x)).hold()).evalf();
}
map_trafo_H_1mx trafo;
- res *= trafo(H(m, xtemp));
+ res *= trafo(H(m, xtemp).hold());
}
return res.subs(xtemp == numeric(x)).evalf();
if (is_a<lst>(m_)) {
m = ex_to<lst>(m_);
} else {
- m = lst(m_);
+ m = lst{m_};
}
if (m.nops() == 0) {
return _ex1;
static ex H_series(const ex& m, const ex& x, const relational& rel, int order, unsigned options)
{
- epvector seq;
- seq.push_back(expair(H(m, x), 0));
- return pseries(rel, seq);
+ epvector seq { expair(H(m, x), 0) };
+ return pseries(rel, std::move(seq));
}
if (is_a<lst>(m_)) {
m = ex_to<lst>(m_);
} else {
- m = lst(m_);
+ m = lst{m_};
}
ex mb = *m.begin();
if (mb > _ex1) {
if (is_a<lst>(m_)) {
m = ex_to<lst>(m_);
} else {
- m = lst(m_);
+ m = lst{m_};
}
c.s << "\\mathrm{H}_{";
lst::const_iterator itm = m.begin();
if (is_a<lst>(m)) {
return filter2(filter(H(m, x).hold()));
} else {
- return filter2(filter(H(lst(m), x).hold()));
+ return filter2(filter(H(lst{m}, x).hold()));
}
}
int Sm = 0;
int Smp1 = 0;
- std::vector<std::vector<cln::cl_N> > crG(s.size() - 1, std::vector<cln::cl_N>(L2 + 1));
+ std::vector<std::vector<cln::cl_N>> crG(s.size() - 1, std::vector<cln::cl_N>(L2 + 1));
for (int m=0; m < (int)s.size() - 1; m++) {
Sm += s[m];
Smp1 = Sm + s[m+1];
// [Cra] section 4
-static void calc_f(std::vector<std::vector<cln::cl_N> >& f_kj,
+static void calc_f(std::vector<std::vector<cln::cl_N>>& f_kj,
const int maxr, const int L1)
{
cln::cl_N t0, t1, t2, t3, t4;
int i, j, k;
- std::vector<std::vector<cln::cl_N> >::iterator it = f_kj.begin();
+ std::vector<std::vector<cln::cl_N>>::iterator it = f_kj.begin();
cln::cl_F one = cln::cl_float(1, cln::float_format(Digits));
t0 = cln::exp(-lambda);
// [Cra] (3.1)
static cln::cl_N crandall_Z(const std::vector<int>& s,
- const std::vector<std::vector<cln::cl_N> >& f_kj)
+ const std::vector<std::vector<cln::cl_N>>& f_kj)
{
const int j = s.size();
}
}
- std::vector<std::vector<cln::cl_N> > f_kj(L1);
+ std::vector<std::vector<cln::cl_N>> f_kj(L1);
calc_f(f_kj, maxr, L1);
const cln::cl_N r0factorial = cln::factorial(r[0]-1);
if (is_a<lst>(m_)) {
m = ex_to<lst>(m_);
} else {
- m = lst(m_);
+ m = lst{m_};
}
lst s;
if (is_a<lst>(s_)) {
s = ex_to<lst>(s_);
} else {
- s = lst(s_);
+ s = lst{s_};
}
c.s << "\\zeta(";
lst::const_iterator itm = m.begin();
git://www.ginac.de / ginac.git / blobdiff