int main(int arg, char** argv)
{
/* MatrixXd m(2,2);
m(0,0) = 3;
m(1,0) = 2.5;
m(0,1) = -1;
m(1,1) = m(1,0) + m(0,1);
std::cout << m << std::endl;
MatrixXf m2 = MatrixXf::Random(3,3);
m2 = (m2 + MatrixXf::Constant(3,3,1.2)) * 50;
cout << "m2 =" << endl << m2 << endl;
VectorXf v(3);
v << 1, 2, 3;
cout << "m * v =" << endl << m2 * v << endl;*/
SystemSolver solver;
vector<double> b;
int size=10;
for(int i=0;i<size;i++)
{
solver(i,i)=i+1;
b.push_back(1);
}
vector<double> sol=solver.SolveSparse(b);
cout<<"*************** SPARSE *************** "<<endl;
for(int i=0;i<size;i++)
cout<<i<<": "<<sol[i]<<endl;
vector<double> sol2=solver.SolveDense(b);
cout<<"*************** DENSE *************** "<<endl;
for(int i=0;i<size;i++)
cout<<i<<": "<<sol2[i]<<endl;
}
TEST(Solver, BasicDiagonalSparse) {
SystemSolver solver;
vector<double> b;
int size=3;
for(int i=0;i<size;i++)
{
solver(i,i)=i+1;
b.push_back(1);
}
vector<double> sol=solver.SolveSparse(b);
for(int i=0;i<size;i++)
EXPECT_NEAR(sol[i],1./(i+1), 0.001);
}