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* 4x4 inverse: revert to cofactors method

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* inverse tests: use createRandomMatrixOfRank, use more strict precision
* tests: createRandomMatrixOfRank: support 1x1 matrices
* determinant: nest the xpr
* Minor: add comment
This commit is contained in:
Benoit Jacob
2009-12-09 12:43:25 -05:00
parent f0315295e9
commit d2e44f2636
6 changed files with 43 additions and 121 deletions
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11
test/inverse.cpp
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@@ -38,18 +38,11 @@ template<typename MatrixType> void inverse(const MatrixType& m)
typedef typename NumTraits<Scalar>::Real RealScalar;
typedef Matrix<Scalar, MatrixType::ColsAtCompileTime, 1> VectorType;
MatrixType m1 = MatrixType::Random(rows, cols),
MatrixType m1(rows, cols),
m2(rows, cols),
mzero = MatrixType::Zero(rows, cols),
identity = MatrixType::Identity(rows, rows);
if (ei_is_same_type<RealScalar,float>::ret)
{
// let's build a more stable to inverse matrix
MatrixType a = MatrixType::Random(rows,cols);
m1 += m1 * m1.adjoint() + a * a.adjoint();
}
createRandomMatrixOfRank(rows,rows,rows,m1);
m2 = m1.inverse();
VERIFY_IS_APPROX(m1, m2.inverse() );