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port Grobner

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Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
This commit is contained in:
Lev Nachmanson 2019-10-23 16:47:26 -07:00
parent f505e76bfc
commit c329263d63
3 changed files with 33 additions and 86 deletions
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11
src/math/lp/nex_creator.cpp
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@ -65,6 +65,17 @@ nex * nex_creator::mk_div(const nex* a, lpvar j) {
}
bool nex_creator::eat_scalar_pow(rational& r, const nex_pow& p, unsigned pow) {
if (p.e()->is_mul()) {
const nex_mul *m = to_mul(p.e());
if (m->size() == 0) {
const rational& coeff = m->coeff();
if (coeff.is_one())
return true;
r *= coeff.expt(p.pow() * pow);
return true;
}
return false;
}
if (!p.e()->is_scalar())
return false;
const nex_scalar *pe = to_scalar(p.e());