How about using v.array() -= 2; ? On Wed 18. Mar 2020 at 01:53, Hung Dang <[email protected]> wrote:
> Hi, > > I try some Eigen examples (see below) and the -= operator is not > supported. Is there any way to make it work without creating a constant > vector? > > Thank a lot, > > Hung > > Matrix2d a; > a << 1, 2, 3, 4; > Vector3d v(1, 2, 3); > std::cout << "a * 2.5 =\n" << a * 2.5 << std::endl; > std::cout << "0.1 * v =\n" << 0.1 * v << std::endl; > std::cout << "Doing v *= 2;" << std::endl; > > v *= 2; > std::cout << "Now v =\n" << v << std::endl; > > // Does not work > // v -= 2; > // std::cout << "Now v =\n" << v << std::endl; > > > > >
