Respect deep joyfully express universal!
Installed on the new cygwin disk; I try to compile ie actually test, I play

Дмитро@Komp /cygdrive/f/HeloWorld
$ g++ ublas_test.cpp -o ublas_test
ublas_test.cpp:1:42: fatal error: boost/numeric/ublas/vector.hpp: No such file or directory
 #include <boost/numeric/ublas/vector.hpp>
compilation terminated.
I test cygwin, I try to compile. Why is my cygwin installed incorrectly?
Please explain to me how to set it up correctly.

#include <boost/numeric/ublas/vector.hpp>
#include <boost/numeric/ublas/matrix.hpp>
#include <boost/numeric/ublas/io.hpp>

using namespace boost::numeric::ublas;

// "y = Ax" приклад
int main()
    vector<double> x(2);
    x(0) = 1; x(1) = 2;

    matrix<double> A(2,2);
    A(0,0) = 0; A(0,1) = 1;
    A(1,0) = 2; A(1,1) = 3;

    vector<double> y = prod(A, x);

    std::cout << y << std::endl;

    return 0;

But he can not find the files that exactly are there? What else is he? setup-x86 itself installed the files
In some directories, I have not corrected anything there.