Detailed Description

template<class T, int _Rows, int _Cols, int _Options>
class gismo::gsMatrix< T, _Rows, _Cols, _Options >

A matrix with arbitrary coefficient type and fixed or dynamic size.

Forward declaration of gsMatrix class.

This class provides an interface to gsEigen::Matrix from the Eigen linear algebra library. Most operations from Eigen are supported on a gsMatrix.

See therefore also the Eigen documentation for dense matrices, http://eigen.tuxfamily.org/dox/group__QuickRefPage.html

Template Parameters

T	coefficient type
_Rows	number of rows: an integer or `Dynamic`
_Cols	number of rows: an integer or `Dynamic`
_Options	further options; see Eigen documentation

Inheritance diagram for gsMatrix< T, _Rows, _Cols, _Options >:

Public Types
typedef memory::shared_ptr< gsMatrix >	Ptr
	Shared pointer for gsMatrix.

typedef memory::unique_ptr< gsMatrix >	uPtr
	Unique pointer for gsMatrix.

Public Member Functions
gsAsMatrix< T, 1, Dynamic >	asRowVector ()

gsAsConstMatrix< T, 1, Dynamic >	asRowVector () const

gsAsVector< T, Dynamic >	asVector ()
	Returns the entries of the matrix resized to a n*m vector column-wise.

gsAsConstVector< T, Dynamic >	asVector () const
	Returns the entries of the matrix resized to a (const) n*m vector column-wise.

T &	at (index_t i)
	Returns the i-th element of the vectorization of the matrix.

T	at (index_t i) const
	Returns the i-th element of the vectorization of the matrix.

void	blockTransposeInPlace (const index_t colBlock)
	Transposes in place the matrix block-wise. The matrix is.

BlockView	blockView (const gsVector< index_t > &rowSizes, const gsVector< index_t > &colSizes)
	Return a block view of the matrix with rowSizes and colSizes.

void	cefInPlace ()
	Converts the matrix to a Column Echelon Form (CEF)

Col3DType	col3d (index_t c)
	Returns column c as a fixed-size 3D vector.

void	colMinor (index_t j, ColMinorMatrixType &result) const

void	firstMinor (index_t i, index_t j, FirstMinorMatrixType &result) const

template<typename OtherDerived >
	gsMatrix (const gsEigen::EigenBase< OtherDerived > &other)
	This constructor allows constructing a gsMatrix from Eigen expressions.

template<typename OtherDerived >
	gsMatrix (const gsEigen::MatrixBase< OtherDerived > &other)
	This constructor allows constructing a gsMatrix from Eigen expressions.

template<typename OtherDerived >
	gsMatrix (const gsEigen::ReturnByValue< OtherDerived > &other)
	This constructor allows constructing a gsMatrix from Eigen expressions.

std::vector< index_t >	idxByColumn (const index_t j)
	Returns the vector permutation of the rows of the matrix by column j.

template<typename OtherDerived >
gsMatrix	khatriRao (const gsEigen::MatrixBase< OtherDerived > &other) const
	Returns the Khatri-Rao product of this with other.

template<typename OtherDerived >
gsMatrix	kron (const gsEigen::MatrixBase< OtherDerived > &other) const
	Returns the Kronecker product of this with other.

void	lexSortRows (const std::vector< index_t > &lorder)
	Sorts rows of matrix by columns in vector lorder.

uPtr	moveToPtr ()
	This function returns a smart pointer to the matrix. After calling it, the matrix object becomes empty, ie the size of the matrix is 0.

void	rcefInPlace ()
	Converts the matrix to its Reduced Column Echelon Form (RCEF)

void	refInPlace ()
	Converts the matrix to a Row Echelon Form (REF)

void	removeCol (index_t i)

gsAsMatrix< T, Dynamic, Dynamic >	reshape (index_t n, index_t m)
	Returns the matrix resized to n x m matrix (data is not copied) This function assumes that the matrix is size n*m, ie. already allocated.

gsAsConstMatrix< T, Dynamic, Dynamic >	reshape (index_t n, index_t m) const
	Returns the matrix resized to n x m matrix (data is not copied) This function assumes that the matrix is size n*m, ie. already allocated.

gsAsMatrix< T, Dynamic, Dynamic >	reshapeCol (index_t c, index_t n, index_t m)
	Returns column c of the matrix resized to n x m matrix This function assumes that the matrix is size n*m, ie. already allocated.

gsAsConstMatrix< T, Dynamic, Dynamic >	reshapeCol (index_t c, index_t n, index_t m) const
	Returns column c of the matrix resized to n x m matrix This function assumes that the matrix is size n*m, ie. already allocated.

void	rowMinor (index_t i, RowMinorMatrixType &result) const

void	rrefInPlace ()
	Converts the matrix to its Reduced Row Echelon Form (RREF)

void	sortByColumn (const index_t j)
	Sorts rows of matrix by column j.

template<class container >
void	submatrix (const container &rowInd, const container &colInd, gsMatrix< T > &result) const

template<class container >
void	submatrixCols (const container &colInd, gsMatrix< T > &result) const

template<class container >
void	submatrixRows (const container &rowInd, gsMatrix< T > &result) const