Hi, Today I begin to learn to use boost ublas. And I have successfully done svd for a real matrix. To do svd for a complex matrix, I simply change codes from double to std::complex like the following. But it does not work. #include <boost/numeric/bindings/lapack/gesdd.hpp> #include<boost/numeric/bindings/traits/ublas_matrix.hpp> #include<boost/numeric/bindings/traits/ublas_vector.hpp> #include <boost/numeric/ublas/matrix.hpp> #include <boost/numeric/ublas/vector.hpp> int main() { using namespace boost::numeric::bindings::lapack; using namespace boost::numeric::ublas; matrix<std::complex<double>, column_major> A (4,2); A(0,0)=std::complex<double>(2, 5); A(0,1)=4; A(1,0)=1; A(1,1)=3; A(2,0)=0; A(2,1)=0; A(3,0)=0; A(3,1)=0; std::cout << A << std::endl; matrix<std::complex<double>, column_major> U(4,4); matrix<std::complex<double>, column_major> V(2,2); vector<std::complex<double>> S(2); gesdd(A, S, U, V); std::cout << U << std::endl; std::cout << S << std::endl; std::cout << V << std::endl; return 0; } When compiles the program, MSVC8 will tell that it found no gesdd method for complex type arguments. Please help me. Thanks Allen