How can I get started with the Eigen library in C++11?

How can I get started with the Eigen library in C++11?

To get started with the Eigen library, first, ensure you have C++11 support in your compiler. Then, download the Eigen library from its official website.

What are the key features of the Eigen library?

Eigen is known for its high performance, ease of use, and support for various matrix operations, linear algebra, and geometry.

Can you show me a simple example of using Eigen?

Sure! Here's a simple example:

#include <Eigen/Dense>
using namespace Eigen;

int main() {
    Matrix2d m;
    m(0, 0) = 3;
    m(1, 0) = 2.5;
    m(0, 1) = -1;
    m(1, 1) = m(1, 0) + m(0, 1);
    std::cout << m << std::endl;
}

Are there any resources for learning more about Eigen?

Yes, the official Eigen documentation is a great resource, along with various online tutorials and courses.