devtools/eigen
1
0
Fork 0
mirror of https://gitlab.com/libeigen/eigen.git synced 2026-04-10 11:34:33 +08:00
Code Issues Packages Projects Releases Wiki Activity

* the 4th template param of Matrix is now Options. One bit for storage

Browse Source 
order, one bit for enabling/disabling auto-alignment. If you want to
disable, do:
Matrix<float,4,1,Matrix_DontAlign>
The Matrix_ prefix is the only way I can see to avoid
ambiguity/pollution. The old RowMajor, ColMajor constants are
deprecated, remain for now.
* this prompted several improvements in matrix_storage. ei_aligned_array
renamed to ei_matrix_array and moved there. The %16==0 tests are now
much more centralized in 1 place there.
* unalignedassert test: updated
* update FindEigen2.cmake from KDElibs
* determinant test: use VERIFY_IS_APPROX to fix false positives; add
testing of 1 big matrix
This commit is contained in:
Benoit Jacob
2009-01-04 15:26:32 +00:00
parent d9e5fd393a
commit 15ca6659ac
11 changed files with 108 additions and 85 deletions
Download Patch File Download Diff File Expand all files Collapse all files

17
test/determinant.cpp
View File

@@ -38,8 +38,8 @@ template<typename MatrixType> void determinant(const MatrixType& m)
m2.setRandom();
typedef typename MatrixType::Scalar Scalar;
Scalar x = ei_random<Scalar>();
VERIFY(ei_isApprox(MatrixType::Identity(size, size).determinant(), Scalar(1)));
VERIFY(ei_isApprox((m1*m2).determinant(), m1.determinant() * m2.determinant()));
VERIFY_IS_APPROX(MatrixType::Identity(size, size).determinant(), Scalar(1));
VERIFY_IS_APPROX((m1*m2).determinant(), m1.determinant() * m2.determinant());
if(size==1) return;
int i = ei_random<int>(0, size-1);
int j;
@@ -48,18 +48,18 @@ template<typename MatrixType> void determinant(const MatrixType& m)
} while(j==i);
m2 = m1;
m2.row(i).swap(m2.row(j));
VERIFY(ei_isApprox(m2.determinant(), -m1.determinant()));
VERIFY_IS_APPROX(m2.determinant(), -m1.determinant());
m2 = m1;
m2.col(i).swap(m2.col(j));
VERIFY(ei_isApprox(m2.determinant(), -m1.determinant()));
VERIFY(ei_isApprox(m2.determinant(), m2.transpose().determinant()));
VERIFY(ei_isApprox(ei_conj(m2.determinant()), m2.adjoint().determinant()));
VERIFY_IS_APPROX(m2.determinant(), -m1.determinant());
VERIFY_IS_APPROX(m2.determinant(), m2.transpose().determinant());
VERIFY_IS_APPROX(ei_conj(m2.determinant()), m2.adjoint().determinant());
m2 = m1;
m2.row(i) += x*m2.row(j);
VERIFY(ei_isApprox(m2.determinant(), m1.determinant()));
VERIFY_IS_APPROX(m2.determinant(), m1.determinant());
m2 = m1;
m2.row(i) *= x;
VERIFY(ei_isApprox(m2.determinant(), m1.determinant() * x));
VERIFY_IS_APPROX(m2.determinant(), m1.determinant() * x);
}
void test_determinant()
@@ -72,4 +72,5 @@ void test_determinant()
CALL_SUBTEST( determinant(Matrix<std::complex<double>, 10, 10>()) );
CALL_SUBTEST( determinant(MatrixXd(20, 20)) );
}
CALL_SUBTEST( determinant(MatrixXd(200, 200)) );
}