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

fix HouseholderSequence API, bug #50:

Browse Source 
* remove ctors taking more than 2 ints
 * rename actualVectors to length
 * add length/shift/trans accessors/mutators
This commit is contained in:
Benoit Jacob
2010-12-30 04:18:40 -05:00
parent e112ad8124
commit dbd9c5fd50
6 changed files with 78 additions and 49 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
test/householder.cpp
View File

@@ -102,7 +102,12 @@ template<typename MatrixType> void householder(const MatrixType& m)
m2 = m1;
m2.block(shift,0,brows,cols) = qr.matrixQR();
HCoeffsVectorType hc = qr.hCoeffs().conjugate();
HouseholderSequence<MatrixType, HCoeffsVectorType> hseq(m2, hc, false, hc.size(), shift);
HouseholderSequence<MatrixType, HCoeffsVectorType> hseq(m2, hc);
hseq.setLength(hc.size()).setShift(shift);
VERIFY(hseq.trans() == false);
VERIFY(hseq.length() == hc.size());
VERIFY(hseq.shift() == shift);
MatrixType m5 = m2;
m5.block(shift,0,brows,cols).template triangularView<StrictlyLower>().setZero();
VERIFY_IS_APPROX(hseq * m5, m1); // test applying hseq directly
@@ -112,7 +117,8 @@ template<typename MatrixType> void householder(const MatrixType& m)
// test householder sequence on the right with a shift
TMatrixType tm2 = m2.transpose();
HouseholderSequence<TMatrixType, HCoeffsVectorType, OnTheRight> rhseq(tm2, hc, false, hc.size(), shift);
HouseholderSequence<TMatrixType, HCoeffsVectorType, OnTheRight> rhseq(tm2, hc);
rhseq.setLength(hc.size()).setShift(shift);
VERIFY_IS_APPROX(rhseq * m5, m1); // test applying rhseq directly
m3 = rhseq;
VERIFY_IS_APPROX(m3 * m5, m1); // test evaluating rhseq to a dense matrix, then applying