| Brian Silverman | 72890c2 | 2015-09-19 14:37:37 -0400 | [diff] [blame] | 1 | MatrixXf mat(2,2); |
| 2 | mat << 1, 2, 4, 7; |
| 3 | cout << "Here is the matrix mat:\n" << mat << endl << endl; |
| 4 | |
| 5 | mat = 2 * mat; |
| 6 | cout << "After 'mat = 2 * mat', mat = \n" << mat << endl << endl; |
| 7 | |
| 8 | |
| 9 | mat = mat - MatrixXf::Identity(2,2); |
| 10 | cout << "After the subtraction, it becomes\n" << mat << endl << endl; |
| 11 | |
| 12 | |
| 13 | ArrayXXf arr = mat; |
| 14 | arr = arr.square(); |
| 15 | cout << "After squaring, it becomes\n" << arr << endl << endl; |
| 16 | |
| 17 | // Combining all operations in one statement: |
| 18 | mat << 1, 2, 4, 7; |
| 19 | mat = (2 * mat - MatrixXf::Identity(2,2)).array().square(); |
| 20 | cout << "Doing everything at once yields\n" << mat << endl << endl; |