ja1.cpp

// demonstrating use of Eigen::Map
#include <iostream>
#include <vector>
#include <Eigen/Dense>

int main() {
    using namespace Eigen;
    std::vector<float> foo{1.0, 2.0, 3.0, 4.0};
    Map<Matrix<float, Dynamic, 1>> foom(foo.data(), foo.size());
    IOFormat OctaveFmt(StreamPrecision, 0, ", ", ";\n", "", "", "[", "]");
    std::cout << "foo as row vector=\n" << foom.format(OctaveFmt) << "\n";
}