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Add true determinant to QR and it's variants

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sjusju
2022-07-29 18:24:14 +00:00
committed by Rasmus Munk Larsen
parent b7668c0371
commit ef4654bae7
7 changed files with 167 additions and 20 deletions
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8
test/qr_colpivoting.cpp
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@@ -273,10 +273,12 @@ template<typename MatrixType> void qr_invertible()
// now construct a matrix with prescribed determinant
m1.setZero();
for(int i = 0; i < size; i++) m1(i,i) = internal::random<Scalar>();
RealScalar absdet = abs(m1.diagonal().prod());
Scalar det = m1.diagonal().prod();
RealScalar absdet = abs(det);
m3 = qr.householderQ(); // get a unitary
m1 = m3 * m1 * m3;
m1 = m3 * m1 * m3.adjoint();
qr.compute(m1);
VERIFY_IS_APPROX(det, qr.determinant());
VERIFY_IS_APPROX(absdet, qr.absDeterminant());
VERIFY_IS_APPROX(log(absdet), qr.logAbsDeterminant());
}
@@ -296,6 +298,7 @@ template<typename MatrixType> void qr_verify_assert()
VERIFY_RAISES_ASSERT(qr.isSurjective())
VERIFY_RAISES_ASSERT(qr.isInvertible())
VERIFY_RAISES_ASSERT(qr.inverse())
VERIFY_RAISES_ASSERT(qr.determinant())
VERIFY_RAISES_ASSERT(qr.absDeterminant())
VERIFY_RAISES_ASSERT(qr.logAbsDeterminant())
}
@@ -315,6 +318,7 @@ template<typename MatrixType> void cod_verify_assert()
VERIFY_RAISES_ASSERT(cod.isSurjective())
VERIFY_RAISES_ASSERT(cod.isInvertible())
VERIFY_RAISES_ASSERT(cod.pseudoInverse())
VERIFY_RAISES_ASSERT(cod.determinant())
VERIFY_RAISES_ASSERT(cod.absDeterminant())
VERIFY_RAISES_ASSERT(cod.logAbsDeterminant())
}