inline std::string aligned_write(const MatExpr &a) {
//boost::io::ios_flags_saver coutstate(stream);
std::ostringstream oss;
oss << std::scientific;
for (unsigned int i=0; i<a.size1(); ++i) {
for (unsigned int j=0; j<a.size2(); ++j)
oss << a(i,j) << "\t";
if (i < a.size1()-1)
oss << std::endl;
}
return oss.str();
}
