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simplify and order nla_expr

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Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
This commit is contained in:
Lev Nachmanson 2019-07-15 20:27:30 -07:00
parent 8eaa2bfb02
commit 9cba261a9c
2 changed files with 115 additions and 61 deletions
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45
src/test/lp/lp.cpp
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@ -67,37 +67,28 @@ void test_basic_lemma_for_mon_zero_from_factors_to_monomial();
void test_basic_lemma_for_mon_neutral_from_monomial_to_factors();
void test_basic_lemma_for_mon_neutral_from_factors_to_monomial();
void test_cn_on_expr(horner::nex t) {
TRACE("nla_cn", tout << "t=" << t << '\n';);
cross_nested cn(t, [](const horner::nex& n) {
TRACE("nla_cn", tout << n << "\n";);
auto nn = n;
nn.simplify();
nn.sort();
TRACE("nla_cn", tout << "ordered version\n" << nn << "\n______________________\n";);
} );
cn.run();
}
void test_cn() {
typedef horner::nex nex;
enable_trace("nla_cn");
// (a(a+(b+c)c+d)d + e(a(e+c)+d)
enable_trace("nla_cn_details");
nex a = nex::var(0), b = nex::var(1), c = nex::var(2), d = nex::var(3), e = nex::var(4);
{
nex t = a*a*d + a*b*c*d + a*c*c*d + a*d*d + e*a*e + e*a*c + e*d;
std::cout << "t = " << t << "\n";
TRACE("nla_cn", tout << "t=" << t << '\n';);
cross_nested cn(t, [](const nex& n) {
std::cout << n << "\n";
auto nn = n;
nn.sort();
std::cout << "ordered version\n" << nn << "\n______________________\n";
} );
cn.run();
}
{
nex t = a*b*d + a*b*c;
std::cout << "t = " << t << "\n";
TRACE("nla_cn", tout << "t=" << t << '\n';);
cross_nested cn(t, [](const nex& n) {
std::cout << n << "\n";
auto nn = n;
nn.sort();
std::cout << "ordered version\n" << nn << "\n______________________\n";
} );
cn.run();
}
nex t = a*a*d + a*b*c*d + a*a*c*c*d + a*d*d + e*a*e + e*a*c + e*d;
test_cn_on_expr(t);
test_cn_on_expr(a*b*d + a*b*c);
}
} // end of namespace nla