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[136] | 1 | MatrixXf mat(2,2);
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| 2 | mat << 1, 2, 4, 7;
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| 3 | cout << "Here is the matrix mat:\n" << mat << endl << endl;
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| 4 |
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| 5 | mat = 2 * mat;
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| 6 | cout << "After 'mat = 2 * mat', mat = \n" << mat << endl << endl;
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| 7 |
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| 8 |
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| 9 | mat = mat - MatrixXf::Identity(2,2);
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| 10 | cout << "After the subtraction, it becomes\n" << mat << endl << endl;
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| 11 |
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| 12 |
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| 13 | ArrayXXf arr = mat;
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| 14 | arr = arr.square();
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| 15 | cout << "After squaring, it becomes\n" << arr << endl << endl;
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| 16 |
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| 17 | // Combining all operations in one statement:
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| 18 | mat << 1, 2, 4, 7;
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| 19 | mat = (2 * mat - MatrixXf::Identity(2,2)).array().square();
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| 20 | cout << "Doing everything at once yields\n" << mat << endl << endl;
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