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* big rework of Inverse.h:

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- remove all invertibility checking, will be redundant with LU
  - general case: adapt to matrix storage order for better perf
  - size 4 case: handle corner cases without falling back to gen case.
  - rationalize with selectors instead of compile time if
  - add C-style computeInverse()
* update inverse test.
* in snippets, default cout precision to 3 decimal places
* add some cmake module from kdelibs to support btl with cmake 2.4
This commit is contained in:
Benoit Jacob
2008-07-15 23:56:17 +00:00
parent b970a9c8aa
commit 62ec1dd616
8 changed files with 319 additions and 220 deletions
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18
test/inverse.cpp
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@@ -38,32 +38,30 @@ template<typename MatrixType> void inverse(const MatrixType& m)
MatrixType m1 = MatrixType::random(rows, cols),
m2 = MatrixType::random(rows, cols),
m3(rows, cols),
mzero = MatrixType::zero(rows, cols),
identity = MatrixType::identity(rows, rows);
m2 = m1.inverse();
VERIFY_IS_APPROX(m1, m2.inverse() );
m3 = (m1+m2).inverse();
VERIFY_IS_APPROX(m3+m1, (m1+m2).inverse()+m1);
m1.computeInverse(&m2);
VERIFY_IS_APPROX(m1, m2.inverse() );
VERIFY_IS_APPROX(m1, m1.inverse().eval().inverse() );
VERIFY_IS_APPROX((Scalar(2)*m2).inverse(), m2.inverse()*Scalar(0.5));
VERIFY_IS_NOT_APPROX(m1, m1.inverse() );
VERIFY_IS_APPROX(identity, m1.inverse() * m1 );
VERIFY_IS_APPROX(identity, m1 * m1.inverse() );
// this one fails:
VERIFY_IS_APPROX(m1, (m1.inverse()).inverse() );
VERIFY_IS_APPROX(m1, m1.inverse().inverse() );
}
void test_inverse()
{
for(int i = 0; i < 1; i++) {
CALL_SUBTEST( inverse(Matrix2f()) );
CALL_SUBTEST( inverse(Matrix<double,1,1>()) );
CALL_SUBTEST( inverse(Matrix2d()) );
CALL_SUBTEST( inverse(Matrix3f()) );
CALL_SUBTEST( inverse(Matrix4d()) );
// CALL_SUBTEST( inverse(MatrixXcd(7,7)) );
CALL_SUBTEST( inverse(Matrix4f()) );
CALL_SUBTEST( inverse(MatrixXcd(7,7)) );
}
}