From 44861dcbfeee041223c4aac1ee075e92fa4daa01 Mon Sep 17 00:00:00 2001 From: Stanislaw Halik Date: Sun, 18 Sep 2016 12:42:15 +0200 Subject: update --- eigen/doc/examples/tut_arithmetic_matrix_mul.cpp | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) create mode 100644 eigen/doc/examples/tut_arithmetic_matrix_mul.cpp (limited to 'eigen/doc/examples/tut_arithmetic_matrix_mul.cpp') diff --git a/eigen/doc/examples/tut_arithmetic_matrix_mul.cpp b/eigen/doc/examples/tut_arithmetic_matrix_mul.cpp new file mode 100644 index 0000000..f213902 --- /dev/null +++ b/eigen/doc/examples/tut_arithmetic_matrix_mul.cpp @@ -0,0 +1,19 @@ +#include +#include + +using namespace Eigen; +int main() +{ + Matrix2d mat; + mat << 1, 2, + 3, 4; + Vector2d u(-1,1), v(2,0); + std::cout << "Here is mat*mat:\n" << mat*mat << std::endl; + std::cout << "Here is mat*u:\n" << mat*u << std::endl; + std::cout << "Here is u^T*mat:\n" << u.transpose()*mat << std::endl; + std::cout << "Here is u^T*v:\n" << u.transpose()*v << std::endl; + std::cout << "Here is u*v^T:\n" << u*v.transpose() << std::endl; + std::cout << "Let's multiply mat by itself" << std::endl; + mat = mat*mat; + std::cout << "Now mat is mat:\n" << mat << std::endl; +} -- cgit v1.2.3