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1 | #include <unsupported/Eigen/MatrixFunctions>
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2 | #include <iostream>
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3 |
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4 | using namespace Eigen;
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5 |
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6 | int main()
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7 | {
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8 | const double pi = std::acos(-1.0);
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9 |
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10 | MatrixXd A(2,2);
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11 | A << cos(pi/3), -sin(pi/3),
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12 | sin(pi/3), cos(pi/3);
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13 | std::cout << "The matrix A is:\n" << A << "\n\n";
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14 | std::cout << "The matrix square root of A is:\n" << A.sqrt() << "\n\n";
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15 | std::cout << "The square of the last matrix is:\n" << A.sqrt() * A.sqrt() << "\n";
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16 | }
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