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10 lines
402 B
C++
10 lines
402 B
C++
Matrix3d m = Matrix3d::zero();
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m.part<Eigen::Upper>().setOnes();
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cout << "Here is the matrix m:" << endl << m << endl;
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Matrix3d n = Matrix3d::ones();
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n.part<Eigen::Lower>() *= 2;
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cout << "Here is the matrix n:" << endl << n << endl;
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cout << "And now here is m.inverse()*n, taking advantage of the fact that"
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" m is upper-triangular:" << endl
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<< m.marked<Eigen::Upper>().inverseProduct(n);
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