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75da254fc3
* add a word about noalias and performance for BLAS users
16 lines
393 B
C++
16 lines
393 B
C++
#include <iostream>
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#include <Eigen/Dense>
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using namespace Eigen;
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using namespace std;
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int main()
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{
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Vector3d v(1,2,3);
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Vector3d w(0,1,2);
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cout << "Dot product: " << v.dot(w) << endl;
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double dp = v.adjoint()*w; // automatic conversion of the inner product to a scalar
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cout << "Dot product via a matrix product: " << dp << endl;
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cout << "Cross product:\n" << v.cross(w) << endl;
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}
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