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fixes in nex order, add nex_mul::m_coeff

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Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
This commit is contained in:
Lev Nachmanson 2019-10-11 15:49:56 -07:00
parent 5e40d64a82
commit f71cd72d7b
7 changed files with 95 additions and 121 deletions
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25
src/math/lp/nla_grobner.h
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@ -38,22 +38,6 @@ struct grobner_stats {
class nla_grobner : common {
struct monomial {
rational m_coeff;
svector<lpvar> m_vars; //!< sorted variables
friend class grobner;
friend struct monomial_lt;
monomial() {}
public:
rational const & get_coeff() const { return m_coeff; }
unsigned get_degree() const { return m_vars.size(); }
unsigned get_size() const { return get_degree(); }
lpvar get_var(unsigned idx) const { return m_vars[idx]; }
};
class equation {
unsigned m_bidx:31; //!< position at m_equations_to_delete
unsigned m_lc:1; //!< true if equation if a linear combination of the input equations.
@ -127,8 +111,6 @@ bool simplify_processed_with_eq(equation*);
void display_equations(std::ostream & out, equation_set const & v, char const * header) const;
std::ostream& display_equation(std::ostream & out, const equation & eq);
void display_monomial(std::ostream & out, monomial const & m) const;
void display(std::ostream & out) const;
void get_equations(ptr_vector<equation>& eqs);
bool try_to_modify_eqs(ptr_vector<equation>& eqs, unsigned& next_weight);
@ -138,13 +120,8 @@ bool simplify_processed_with_eq(equation*);
void process_var(nex_mul*, lpvar j, ci_dependency *& dep, rational&);
nex* mk_monomial_in_row(rational, lpvar, ci_dependency*&);
rational get_monomial_coeff(const nex_mul* m) {
const nex* a = m->children()[0].e();
if (a->is_scalar())
return static_cast<const nex_scalar*>(a)->value();
return rational(1);
}
void init_equation(equation* eq, const nex*, ci_dependency* d);
equation * simplify(equation const * source, equation * target);
// bool less_than_on_vars(lpvar a, lpvar b) const {