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*adapt Householder to the convention that we now favor refs over ptrs for output. Keep "workspace" as pointer because it is an array (which is now more obvious).

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*rename makeHouseholderSequence to householderSequence, because that's what it returns.
This commit is contained in:
Benoit Jacob
2009-11-10 21:22:20 -05:00
parent e06aa749a4
commit a440385b41
8 changed files with 28 additions and 28 deletions
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6
test/householder.cpp
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@@ -50,7 +50,7 @@ template<typename MatrixType> void householder(const MatrixType& m)
VectorType v1 = VectorType::Random(rows), v2;
v2 = v1;
v1.makeHouseholder(&essential, &beta, &alpha);
v1.makeHouseholder(essential, beta, alpha);
v1.applyHouseholderOnTheLeft(essential,beta,tmp);
VERIFY_IS_APPROX(v1.norm(), v2.norm());
VERIFY_IS_MUCH_SMALLER_THAN(v1.end(rows-1).norm(), v1.norm());
@@ -66,7 +66,7 @@ template<typename MatrixType> void householder(const MatrixType& m)
if(even) v1.end(rows-1).setZero();
m1.colwise() = v1;
m2 = m1;
m1.col(0).makeHouseholder(&essential, &beta, &alpha);
m1.col(0).makeHouseholder(essential, beta, alpha);
m1.applyHouseholderOnTheLeft(essential,beta,tmp);
VERIFY_IS_APPROX(m1.norm(), m2.norm());
VERIFY_IS_MUCH_SMALLER_THAN(m1.block(1,0,rows-1,cols).norm(), m1.norm());
@@ -78,7 +78,7 @@ template<typename MatrixType> void householder(const MatrixType& m)
SquareMatrixType m3(rows,rows), m4(rows,rows);
m3.rowwise() = v1.transpose();
m4 = m3;
m3.row(0).makeHouseholder(&essential, &beta, &alpha);
m3.row(0).makeHouseholder(essential, beta, alpha);
m3.applyHouseholderOnTheRight(essential,beta,tmp);
VERIFY_IS_APPROX(m3.norm(), m4.norm());
VERIFY_IS_MUCH_SMALLER_THAN(m3.block(0,1,rows,rows-1).norm(), m3.norm());