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split and add unit tests for symm and syrk,

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the .rank*update() functions now returns a reference to *this
This commit is contained in:
Gael Guennebaud
2009-07-23 21:22:51 +02:00
parent b67abe22b3
commit 82c5438c95
7 changed files with 195 additions and 76 deletions
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10
Eigen/src/Core/SelfAdjointView.h
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@@ -120,23 +120,25 @@ template<typename MatrixType, unsigned int UpLo> class SelfAdjointView
/** Perform a symmetric rank 2 update of the selfadjoint matrix \c *this:
* \f$ this = this + \alpha ( u v^* + v u^*) \f$
* \returns a reference to \c *this
*
* The vectors \a u and \c v \b must be column vectors, however they can be
* a adjoint expression without any overhead. Only the meaningful triangular
* part of the matrix is updated, the rest is left unchanged.
*/
template<typename DerivedU, typename DerivedV>
void rank2update(const MatrixBase<DerivedU>& u, const MatrixBase<DerivedV>& v, Scalar alpha = Scalar(1));
SelfAdjointView& rank2update(const MatrixBase<DerivedU>& u, const MatrixBase<DerivedV>& v, Scalar alpha = Scalar(1));
/** Perform a symmetric rank K update of the selfadjoint matrix \c *this:
* \f$ this = this + \alpha ( u u^* ) \f$
* where \a u is a vector or matrix.
* \f$ this = this + \alpha ( u u^* ) \f$ where \a u is a vector or matrix.
*
* \returns a reference to \c *this
*
* Note that to perform \f$ this = this + \alpha ( u^* u ) \f$ you can simply
* call this function with u.adjoint().
*/
template<typename DerivedU>
void rankKupdate(const MatrixBase<DerivedU>& u, Scalar alpha = Scalar(1));
SelfAdjointView& rankKupdate(const MatrixBase<DerivedU>& u, Scalar alpha = Scalar(1));
/////////// Cholesky module ///////////