Hi,

the following code gives a lot of error messages (which look strange to
a new user of Eigen2, as me).

#include
// import most common Eigen types
USING_PART_OF_NAMESPACE_EIGEN

int main() {
int N=4;
MatrixXd A = MatrixXd::Random(N,N);
}

How to initialize (or set) a dynamic matrix to a random matrix?

Thanks for any hints,
Helmut.

as described in the doc of Random and in the tutorial, you need to include the Array module:

#include