MatrixPower_optimal.cpp
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			#include <unsupported/Eigen/MatrixFunctions>
			#include <iostream>

			using namespace Eigen;

			int main()
			{
			Matrix4cd A = Matrix4cd::Random();
			MatrixPower<Matrix4cd> Apow(A);

			std::cout << "The matrix A is:\n" << A << "\n\n"
			"A^3.1 is:\n" << Apow(3.1) << "\n\n"
			"A^3.3 is:\n" << Apow(3.3) << "\n\n"
			"A^3.7 is:\n" << Apow(3.7) << "\n\n"
			"A^3.9 is:\n" << Apow(3.9) << std::endl;
			return 0;
			}

dlma/eigen-3.4.0/unsupported/doc/examples/MatrixPower_optimal.cpp68bb631292e1master