libMesh::DenseSubVector< T > Class Template Reference

#include <dense_subvector.h>

Inheritance diagram for libMesh::DenseSubVector< T >:

[legend]

List of all members.

Public Member Functions
virtual void	zero ()=0
virtual T	el (const unsigned int i) const =0
virtual T &	el (const unsigned int i)=0
virtual unsigned int	size () const =0
void	print (std::ostream &os) const
void	print_scientific (std::ostream &os) const
Friends
std::ostream &	operator<< (std::ostream &os, const DenseVectorBase< T > &v)

---

Detailed Description

template<typename T>
class libMesh::DenseSubVector< T >

Defines a dense subvector for use in Finite Element-type computations. Useful for storing element load vectors before summation into a global vector, particularly when you have systems of equations.

Author:

Benjamin S. Kirk, 2003

Definition at line 45 of file dense_subvector.h.

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Member Function Documentation

template<typename T>

virtual T& libMesh::DenseVectorBase< T >::el

(

const unsigned int

i

)

[pure virtual, inherited]

Returns:

the (i) element of the vector as a writeable reference.

Implemented in libMesh::DenseVector< T >, and libMesh::DenseVector< Number >.

template<typename T>

virtual T libMesh::DenseVectorBase< T >::el

(

const unsigned int

i

)

const [pure virtual, inherited]

Returns:

the (i) element of the vector.

Implemented in libMesh::DenseVector< T >, and libMesh::DenseVector< Number >.

Referenced by libMesh::DenseMatrixBase< T >::condense(), libMesh::DofMap::extract_local_vector(), libMesh::DenseVectorBase< T >::print(), and libMesh::DenseVectorBase< T >::print_scientific().

template<typename T >

void libMesh::DenseVectorBase< T >::print

(

std::ostream &

os

)

const [inline, inherited]

Pretty-print the vector to stdout.

Definition at line 62 of file dense_vector_base.C.

References libMesh::DenseVectorBase< T >::el(), and libMesh::DenseVectorBase< T >::size().

{
  for (unsigned int i=0; i<this->size(); i++)
    os << std::setw(8)
       << this->el(i)
       << std::endl;
}

template<typename T >

void libMesh::DenseVectorBase< T >::print_scientific

(

std::ostream &

os

)

const [inline, inherited]

Prints the entries of the vector with additional decimal places in scientific notation.

Definition at line 30 of file dense_vector_base.C.

References libMesh::DenseVectorBase< T >::el(), and libMesh::DenseVectorBase< T >::size().

{
#ifndef LIBMESH_BROKEN_IOSTREAM

  // save the initial format flags
  std::ios_base::fmtflags os_flags = os.flags();

  // Print the vector entries.
  for (unsigned int i=0; i<this->size(); i++)
    os << std::setw(10)
       << std::scientific
       << std::setprecision(8)
       << this->el(i)
       << std::endl;

  // reset the original format flags
  os.flags(os_flags);

#else

  // Print the matrix entries.
  for (unsigned int i=0; i<this->size(); i++)
    os << std::setprecision(8)
       << this->el(i)
       << std::endl;

#endif
}

template<typename T>

virtual unsigned int libMesh::DenseVectorBase< T >::size

(

)

const [pure virtual, inherited]

Returns:

the size of the vector.

Implemented in libMesh::DenseVector< T >, and libMesh::DenseVector< Number >.

Referenced by libMesh::DenseMatrixBase< T >::condense(), libMesh::DofMap::extract_local_vector(), libMesh::PetscVector< T >::insert(), libMesh::LaspackVector< T >::insert(), libMesh::DistributedVector< T >::insert(), libMesh::DenseVectorBase< T >::print(), and libMesh::DenseVectorBase< T >::print_scientific().

template<typename T>

virtual void libMesh::DenseVectorBase< T >::zero

(

)

[pure virtual, inherited]

Set every element in the vector to 0. Needs to be pure virtual since the storage method may be different in derived classes.

Implemented in libMesh::DenseVector< T >, and libMesh::DenseVector< Number >.

Referenced by libMesh::DofMap::extract_local_vector().

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Friends And Related Function Documentation

template<typename T>

std::ostream& operator<<	(	std::ostream &	os,
		const DenseVectorBase< T > &	v
	)			[friend, inherited]

Same as above, but allows you to print using the usual stream syntax.

Definition at line 91 of file dense_vector_base.h.

  {
    v.print(os);
    return os;
  }

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The documentation for this class was generated from the following file:

• dense_subvector.h