mirrors/z3
3
0
Fork 0
mirror of https://github.com/Z3Prover/z3 synced 2025-08-15 23:35:26 +00:00
Code Activity

fix the factorization sign to be equal to the monomial sign

Browse source 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
This commit is contained in:
Lev Nachmanson 2019-05-10 12:08:56 -07:00
parent df5f3f9722
commit 375027d195
13 changed files with 185 additions and 151 deletions
Download patch file Download diff file Expand all files Collapse all files

14
src/util/lp/nla_tangent_lemmas.h
View file

@ -52,16 +52,16 @@ class tangents : common {
public:
tangents(core *core);
void tangent_lemma();
private:
private:
lpvar find_binomial_to_refine();
void generate_simple_tangent_lemma();
void generate_simple_tangent_lemma(const monomial&);
void generate_explanations_of_tang_lemma(const monomial& rm, const bfc& bf, lp::explanation& exp);
void generate_explanations_of_tang_lemma(const monomial& m, const factorization& bf, lp::explanation& exp);
void tangent_lemma_bf(const bfc& bf, lpvar j, const rational& sign, const monomial* rm);
void generate_tang_plane(const rational & a, const rational& b, const factor& x, const factor& y, bool below, lpvar j, const rational& j_sign);
void tangent_lemma_bf(const monomial& m,const factorization& bf);
void generate_tang_plane(const rational & a, const rational& b, const factor& x, const factor& y, bool below, lpvar j);
void generate_two_tang_lines(const bfc & bf, const point& xy, const rational& sign, lpvar j);
void generate_two_tang_lines(const factorization & bf, const point& xy, lpvar j);
// Get two planes tangent to surface z = xy, one at point a, and another at point b.
// One can show that these planes still create a cut.
void get_initial_tang_points(point &a, point &b, const point& xy, bool below) const;