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print terms as monomials

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Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
This commit is contained in:
Lev Nachmanson 2019-06-20 12:57:48 -07:00
parent 8955509023
commit 130995a3db
10 changed files with 99 additions and 82 deletions
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81
src/math/lp/lp_utils.h
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@ -77,52 +77,51 @@ bool is_non_decreasing(const K& v) {
return true;
}
template <typename T>
std::ostream& print_linear_combination_customized(const vector<std::pair<T, unsigned>> & coeffs, std::function<std::string (unsigned)> var_str, std::ostream & out) {
bool first = true;
for (const auto & it : coeffs) {
T val = it.first;
if (first) {
first = false;
if (val.is_neg()) {
out << "- ";
val = -val;
}
} else {
if (val.is_pos()) {
out << " + ";
} else {
out << " - ";
val = -val;
}
}
if (val == 1)
out << " ";
else {
out << T_to_string(val);
}
out << var_str(it.second);
}
return out;
}
template <typename T>
void print_linear_combination_of_column_indices_only(const T & coeffs, std::ostream & out) {
bool first = true;
for (const auto & it : coeffs) {
auto val = it.coeff();
if (first) {
first = false;
} else {
if (val.is_pos()) {
out << " + ";
} else {
out << " - ";
val = -val;
}
}
if (val == 1)
out << " ";
else
out << T_to_string(val);
out << "v" << it.var();
}
std::ostream& print_linear_combination_of_column_indices_only(const vector<std::pair<T, unsigned>> & coeffs, std::ostream & out) {
return print_linear_combination_customized(
coeffs,
[](unsigned j) {std::stringstream ss; ss << "v" << j; return ss.str();},
out);
}
template <typename T>
void print_linear_combination_of_column_indices_only(const vector<std::pair<T, unsigned>> & coeffs, std::ostream & out) {
bool first = true;
template <typename T, typename K>
std::ostream& print_linear_combination_indices_only(const T & coeffs, std::ostream & out) {
vector<std::pair<K, unsigned>> cfs;
for (const auto & it : coeffs) {
auto val = it.first;
if (first) {
first = false;
} else {
if (val.is_pos()) {
out << " + ";
} else {
out << " - ";
val = -val;
}
}
if (val == 1)
out << " ";
else
out << T_to_string(val);
out << "v" << it.second;
cfs.push_back(std::make_pair(it.coeff(), it.var()));
}
return print_linear_combination_of_column_indices_only<K>(cfs, out);
}
inline void throw_exception(std::string && str) {