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Reference documentation for deal.II version 8.1.0
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#include <function_lib.h>
Public Member Functions | |
CosineGradFunction () | |
virtual double | value (const Point< dim > &p, const unsigned int component) const |
virtual void | vector_value (const Point< dim > &p, Vector< double > &values) const |
virtual void | value_list (const std::vector< Point< dim > > &points, std::vector< double > &values, const unsigned int component) const |
virtual void | vector_value_list (const std::vector< Point< dim > > &points, std::vector< Vector< double > > &values) const |
virtual Tensor< 1, dim > | gradient (const Point< dim > &p, const unsigned int component) const |
virtual void | gradient_list (const std::vector< Point< dim > > &points, std::vector< Tensor< 1, dim > > &gradients, const unsigned int component) const |
virtual void | vector_gradient_list (const std::vector< Point< dim > > &points, std::vector< std::vector< Tensor< 1, dim > > > &gradients) const |
virtual double | laplacian (const Point< dim > &p, const unsigned int component) const |
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Function (const unsigned int n_components=1, const double initial_time=0.0) | |
virtual | ~Function ()=0 |
Function & | operator= (const Function &f) |
virtual void | vector_values (const std::vector< Point< dim > > &points, std::vector< std::vector< double > > &values) const |
virtual void | vector_gradient (const Point< dim > &p, std::vector< Tensor< 1, dim > > &gradients) const |
virtual void | vector_gradients (const std::vector< Point< dim > > &points, std::vector< std::vector< Tensor< 1, dim > > > &gradients) const |
virtual void | vector_laplacian (const Point< dim > &p, Vector< double > &values) const |
virtual void | laplacian_list (const std::vector< Point< dim > > &points, std::vector< double > &values, const unsigned int component=0) const |
virtual void | vector_laplacian_list (const std::vector< Point< dim > > &points, std::vector< Vector< double > > &values) const |
std::size_t | memory_consumption () const |
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FunctionTime (const double initial_time=0.0) | |
virtual | ~FunctionTime () |
double | get_time () const |
virtual void | set_time (const double new_time) |
virtual void | advance_time (const double delta_t) |
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Subscriptor () | |
Subscriptor (const Subscriptor &) | |
virtual | ~Subscriptor () |
Subscriptor & | operator= (const Subscriptor &) |
void | subscribe (const char *identifier=0) const |
void | unsubscribe (const char *identifier=0) const |
unsigned int | n_subscriptions () const |
void | list_subscribers () const |
DeclException3 (ExcInUse, int, char *, std::string &,<< "Object of class "<< arg2<< " is still used by "<< arg1<< " other objects.\n"<< "(Additional information: "<< arg3<< ")\n"<< "Note the entry in the Frequently Asked Questions of "<< "deal.II (linked to from http://www.dealii.org/) for "<< "more information on what this error means.") | |
DeclException2 (ExcNoSubscriber, char *, char *,<< "No subscriber with identifier \""<< arg2<< "\" did subscribe to this object of class "<< arg1) | |
template<class Archive > | |
void | serialize (Archive &ar, const unsigned int version) |
Additional Inherited Members | |
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const unsigned int | n_components |
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static const unsigned int | dimension = dim |
Gradient of the cosine-shaped pillow function.
This is a vector-valued function with dim
components, the gradient of CosineFunction. On the square [-1,1], it has tangential boundary conditions zero. Thus, it can be used to test implementations of Maxwell operators without bothering about boundary terms.
Definition at line 271 of file function_lib.h.
Functions::CosineGradFunction< dim >::CosineGradFunction | ( | ) |
Constructor, creating a function with dim
components.
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virtual |
Return the value of the function at the given point. Unless there is only one component (i.e. the function is scalar), you should state the component you want to have evaluated; it defaults to zero, i.e. the first component.
Reimplemented from Function< dim >.
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virtual |
Return all components of a vector-valued function at a given point.
values
shall have the right size beforehand, i.e. n_components.
Reimplemented from Function< dim >.
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virtual |
Set values
to the point values of the specified component of the function at the points
. It is assumed that values
already has the right size, i.e. the same size as the points
array.
Be default, this function repeatedly calls value() for each point separately, to fill the output array.
Reimplemented from Function< dim >.
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virtual |
Set values
to the point values of the function at the points
. It is assumed that values
already has the right size, i.e. the same size as the points
array, and that all elements be vectors with the same number of components as this function has.
Be default, this function repeatedly calls vector_value() for each point separately, to fill the output array.
Reimplemented from Function< dim >.
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virtual |
Return the gradient of the specified component of the function at the given point.
Reimplemented from Function< dim >.
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virtual |
Set gradients
to the gradients of the specified component of the function at the points
. It is assumed that gradients
already has the right size, i.e. the same size as the points
array.
Reimplemented from Function< dim >.
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virtual |
Set gradients
to the gradients of the function at the points
, for all components. It is assumed that gradients
already has the right size, i.e. the same size as the points
array.
The outer loop over gradients
is over the points in the list, the inner loop over the different components of the function.
Reimplemented from Function< dim >.
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virtual |
Compute the Laplacian of a given component at point p
.
Reimplemented from Function< dim >.