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1 | #include <Eigen/Dense>
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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 | using namespace std;
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6 |
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7 | int main(int, char**)
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8 | {
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9 | cout.precision(3);
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10 | Matrix3i m1;
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11 | m1 << 1, 2, 3,
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12 | 4, 5, 6,
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13 | 7, 8, 9;
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14 | cout << m1 << endl << endl;
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15 | Matrix3i m2 = Matrix3i::Identity();
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16 | m2.block(0,0, 2,2) << 10, 11, 12, 13;
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17 | cout << m2 << endl << endl;
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18 | Vector2i v1;
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19 | v1 << 14, 15;
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20 | m2 << v1.transpose(), 16,
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21 | v1, m1.block(1,1,2,2);
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22 | cout << m2 << endl;
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23 |
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24 | return 0;
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25 | }
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