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PermutationMatrix: add inverse() and product of permutations

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This commit is contained in:
Benoit Jacob
2009-11-16 09:39:07 -05:00
parent e09768e3bc
commit b25eb5fdaa
2 changed files with 36 additions and 3 deletions
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9
test/permutationmatrices.cpp
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@@ -72,6 +72,15 @@ template<typename MatrixType> void permutationmatrices(const MatrixType& m)
Matrix<Scalar,Cols,Cols> rm(rp);
VERIFY_IS_APPROX(m_permuted, lm*m_original*rm);
VERIFY_IS_APPROX(lp.inverse()*m_permuted*rp.inverse(), m_original);
VERIFY((lp*lp.inverse()).toDenseMatrix().isIdentity());
LeftPermutationVectorType lv2;
randomPermutationVector(lv2, rows);
LeftPermutationType lp2(lv2);
Matrix<Scalar,Rows,Rows> lm2(lp2);
VERIFY_IS_APPROX((lp*lp2).toDenseMatrix().template cast<Scalar>(), lm2*lm);
}
void test_permutationmatrices()