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get rid of using namespace Eigen in sample code

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This commit is contained in:
Erik Schultheis
2021-12-07 19:57:38 +00:00
committed by Rasmus Munk Larsen
parent e4c40b092a
commit 39a6aff16c
58 changed files with 274 additions and 399 deletions
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19
doc/examples/TutorialLinAlgRankRevealing.cpp
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@@ -1,20 +1,17 @@
#include <iostream>
#include <Eigen/Dense>
using namespace std;
using namespace Eigen;
int main()
{
Matrix3f A;
Eigen::Matrix3f A;
A << 1, 2, 5,
2, 1, 4,
3, 0, 3;
cout << "Here is the matrix A:\n" << A << endl;
FullPivLU<Matrix3f> lu_decomp(A);
cout << "The rank of A is " << lu_decomp.rank() << endl;
cout << "Here is a matrix whose columns form a basis of the null-space of A:\n"
<< lu_decomp.kernel() << endl;
cout << "Here is a matrix whose columns form a basis of the column-space of A:\n"
<< lu_decomp.image(A) << endl; // yes, have to pass the original A
std::cout << "Here is the matrix A:\n" << A << std::endl;
Eigen::FullPivLU<Eigen::Matrix3f> lu_decomp(A);
std::cout << "The rank of A is " << lu_decomp.rank() << std::endl;
std::cout << "Here is a matrix whose columns form a basis of the null-space of A:\n"
<< lu_decomp.kernel() << std::endl;
std::cout << "Here is a matrix whose columns form a basis of the column-space of A:\n"
<< lu_decomp.image(A) << std::endl; // yes, have to pass the original A
}