Element wise inversion in Eigen Matrix

Question

Is there a function/s for doing elementwise inversion of an Eigen Matrix

#include <eigen3/Eigen/Dense>

const auto mat = Eigen::MatrixXd::Constant(3, 3, 5);
std::cout << mat;

5 5 5
5 5 5
5 5 5

And my expected result is this:

1/5 1/5 1/5
1/5 1/5 1/5
1/5 1/5 1/5

Is there any other way to do this apart from using a for-loop? (Also, will using a for loop on eigen matrix for scalar operations be slower as compared to matrix operations)

Answer 1

Solved this issue. Just putting here in case anyone else comes across this issue

mat.cwiseInverse()

Link to all co-efficient wise functions for eigen