sc_RefSCMatrix - Man Page

The RefSCMatrix class is a smart pointer to an SCMatrix specialization.

Synopsis

#include <matrix.h>

Inherits sc::Ref< SCMatrix >.

Public Member Functions

RefSCMatrix ()
Initializes the matrix pointer to 0.
RefSCMatrix (const RefSCMatrix &m)
Make this and m refer to the same SCMatrix.
RefSCMatrix (SCMatrix *m)
Make this refer to m.
RefSCMatrix & operator= (SCMatrix *m)
Make this refer to m.
RefSCMatrix & operator= (const RefSCMatrix &m)
Make this and m refer to the same matrix.
RefSCMatrix (const RefSCDimension &d1, const RefSCDimension &d2, const Ref< SCMatrixKit > &)
Create a vector with dimension d1 by d2.
RefSCVector operator* (const RefSCVector &) const
Multiply this by a vector and return a vector.
RefSCMatrix operator* (const RefSCMatrix &) const
Multiply this by a matrix and return a matrix.
RefSCMatrix operator* (const RefSymmSCMatrix &) const
RefSCMatrix operator* (const RefDiagSCMatrix &) const
RefSCMatrix operator* (double) const
Multiply this by a scalar and return the result.
RefSCMatrix operator+ (const RefSCMatrix &) const
Matrix addition.
RefSCMatrix operator- (const RefSCMatrix &) const
Matrix subtraction.
RefSCMatrix t () const
Return the transpose of this.
RefSCMatrix i () const
Return the inverse of this.
RefSCMatrix gi () const
Return the generalized inverse of this.
RefSCMatrix clone () const
These call the SCMatrix members of the same name after checking for references to 0.
RefSCMatrix copy () const
RefSCMatrix get_subblock (int br, int er, int bc, int ec)
void assign_subblock (const RefSCMatrix &, int br, int er, int bc, int ec, int source_br=0, int source_bc=0)
void accumulate_subblock (const RefSCMatrix &, int, int, int, int, int source_br=0, int source_bc=0)
RefSCVector get_row (int) const
RefSCVector get_column (int) const
void assign_row (const RefSCVector &, int) const
void assign_column (const RefSCVector &, int) const
void accumulate_row (const RefSCVector &, int) const
void accumulate_column (const RefSCVector &, int) const
void accumulate_outer_product (const RefSCVector &, const RefSCVector &) const
void accumulate_product (const RefSCMatrix &, const RefSCMatrix &) const
void assign (const RefSCMatrix &) const
void scale (double) const
void randomize () const
void assign (double) const
void assign (const double *) const
void assign (const double **) const
void convert (double *) const
void convert (double **) const
void accumulate (const RefSCMatrix &) const
void accumulate (const RefSymmSCMatrix &) const
void accumulate (const RefDiagSCMatrix &) const
void element_op (const Ref< SCElementOp > &) const
void element_op (const Ref< SCElementOp2 > &, const RefSCMatrix &) const
void element_op (const Ref< SCElementOp3 > &, const RefSCMatrix &, const RefSCMatrix &) const
int nrow () const
int ncol () const
RefSCDimension rowdim () const
RefSCDimension coldim () const
Ref< SCMatrixKit > kit () const
void set_element (int, int, double) const
void accumulate_element (int, int, double) const
double get_element (int, int) const
void print (std::ostream &) const
void print (const char *title=0, std::ostream &out=ExEnv::out0(), int=10) const
double trace () const
void save (StateOut &)
void restore (StateIn &)
Restores the matrix from StateIn object. The matrix must have been initialized already.
void svd (const RefSCMatrix &U, const RefDiagSCMatrix &sigma, const RefSCMatrix &V)
Compute the singular value decomposition, this = U sigma V.t().
double solve_lin (const RefSCVector &v) const
Solves this x = v.
double determ () const
Returns the determinant of the referenced matrix.
SCMatrixdouble operator() (int i, int j) const
Assign and examine matrix elements.
int nblock () const
If this matrix is blocked return the number of blocks.
RefSCMatrix block (int i) const
If this matrix is blocked return block i.

Public Member Functions inherited from sc::Ref< SCMatrix >
Ref ()
Create a reference to a null object.
Ref (SCMatrix *a)
Create a reference to the object a.
Ref (const Ref< SCMatrix > &a)
Create a reference to the object referred to by a.
Ref (const Ref< A > &a)
Create a reference to the object referred to by a.
~Ref ()
Delete this reference to the object.
SCMatrix * operator-> () const
Returns the reference counted object.
SCMatrix * pointer () const
Returns a pointer the reference counted object.
RefCount * parentpointer () const
Implements the parentpointer pure virtual in the base class.
operator SCMatrix * () const
SCMatrix & operator* () const
Returns a C++ reference to the reference counted object.
int null () const
Return 1 if this is a reference to a null object.
int nonnull () const
Return !null().
int operator== (const Ref< A > &a) const
A variety of ordering and equivalence operators are provided using the Identity class.
int operator>= (const Ref< A > &a) const
int operator<= (const Ref< A > &a) const
int operator> (const Ref< A > &a) const
int operator< (const Ref< A > &a) const
int operator!= (const Ref< A > &a) const
int compare (const Ref< SCMatrix > &a) const
Compare two objects returning -1, 0, or 1.
void clear ()
Refer to the null object.
Ref< SCMatrix > & operator= (const Ref< SCMatrix > &c)
Assignment to c.
Ref< SCMatrix > & operator= (const Ref< A > &c)
Assignment to c.
Ref< SCMatrix > & operator= (SCMatrix *cr)
Assignment to cr.
Ref< SCMatrix > & operator<< (const RefBase &a)
Assignment to the object that a references using dynamic_cast.
Ref< SCMatrix > & operator<< (RefCount *a)
Assigns to the given base class pointer using dynamic_cast.
void assign_pointer (SCMatrix *cr)
Assignment to cr.
void check_pointer () const
Check the validity of the pointer.
void ref_info (std::ostream &os) const
Print information about the reference to os.
void warn (const char *s) const
Print a warning concerning the reference.

Public Member Functions inherited from sc::RefBase
virtual RefCount * parentpointer () const =0
Returns the DescribedClass pointer for the contained object.
void require_nonnull () const
Requires that a nonnull reference is held.

Additional Inherited Members

Protected Member Functions inherited from sc::RefBase

void warn (const char *msg) const
Print a warning message.
void warn_ref_to_stack () const
Called when stack data is referenced.
void warn_skip_stack_delete () const
Called when the deletion of stack data is skipped.
void warn_bad_ref_count () const
Called when the reference count is corrupted.
void ref_info (RefCount *p, std::ostream &os) const
Print information about the reference.
void ref_info (std::ostream &os) const
void check_pointer () const
void reference (RefCount *)
int dereference (RefCount *)

Detailed Description

The RefSCMatrix class is a smart pointer to an SCMatrix specialization.

Constructor & Destructor Documentation

sc::RefSCMatrix::RefSCMatrix ()

Initializes the matrix pointer to 0. The reference must be initialized before it is used.

sc::RefSCMatrix::RefSCMatrix (const RefSCDimension & d1, const RefSCDimension & d2, const Ref< SCMatrixKit > &)

Create a vector with dimension d1 by d2. The data values are undefined.

Member Function Documentation

RefSCMatrix sc::RefSCMatrix::block (int i) const

If this matrix is blocked return block i. Otherwise return this as block 0.

int sc::RefSCMatrix::nblock () const

If this matrix is blocked return the number of blocks. Otherwise return 1.

double sc::RefSCMatrix::solve_lin (const RefSCVector & v) const

Solves this x = v. Overwrites v with x.

void sc::RefSCMatrix::svd (const RefSCMatrix & U, const RefDiagSCMatrix & sigma, const RefSCMatrix & V)

Compute the singular value decomposition, this = U sigma V.t(). The dimension of sigma is the smallest dimension of this. U, V, and sigma must already have the correct dimensions and are overwritten.

Author

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Info

Thu Jan 19 2023 Version 2.3.1 MPQC