julienr

// g++ -o eigen_test eigen_sparse_solver.cc -I/home/julien/slash/include/eigen3 -I/usr/include/suitesparse -lumfpack -lamd -lblas
#include <cstdlib>
#include <cassert>
#include <Eigen/Eigen>
#include <Eigen/UmfPackSupport>
#include <vector>
#include <iostream>

using namespace Eigen;
using namespace std;