#includeIn this example, we create a Matrix object A with dimensions 3x3. We then use the get function to retrieve the element at row 1, column 2 (which is 6). We output this value to the console. In this case, the Matrix library is likely the Eigen library, as it is a popular choice for matrix operations in C++.#include int main() { Matrix A = {{1, 2, 3}, {4, 5, 6}, {7, 8, 9}}; std::cout << "Element at row 1, column 2: " << A.get(1, 2) << std::endl; return 0; }