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Reference documentation for deal.II version 8.4.2
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Reference documentation for deal.II version 8.4.2
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#include <deal.II/base/function_lib.h>
Public Member Functions | |
| virtual double | value (const Point< dim > &p, const unsigned int component=0) const |
| virtual void | value_list (const std::vector< Point< dim > > &points, std::vector< double > &values, const unsigned int component=0) 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=0) const |
| virtual double | laplacian (const Point< dim > &p, const unsigned int component=0) const |
| virtual void | laplacian_list (const std::vector< Point< dim > > &points, std::vector< double > &values, const unsigned int component=0) const |
 Public Member Functions inherited from Function< dim > | |
| Function (const unsigned int n_components=1, const double initial_time=0.0) | |
| virtual | ~Function ()=0 |
| Function & | operator= (const Function &f) |
| virtual void | vector_value (const Point< dim > &p, Vector< double > &values) const |
| 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, double > > &gradients) const |
| virtual void | gradient_list (const std::vector< Point< dim > > &points, std::vector< Tensor< 1, dim, double > > &gradients, const unsigned int component=0) const |
| virtual void | vector_gradients (const std::vector< Point< dim > > &points, std::vector< std::vector< Tensor< 1, dim, double > > > &gradients) const |
| virtual void | vector_gradient_list (const std::vector< Point< dim > > &points, std::vector< std::vector< Tensor< 1, dim, double > > > &gradients) const |
| virtual void | vector_laplacian (const Point< dim > &p, Vector< double > &values) const |
| virtual void | vector_laplacian_list (const std::vector< Point< dim > > &points, std::vector< Vector< double > > &values) const |
| virtual SymmetricTensor< 2, dim, double > | hessian (const Point< dim > &p, const unsigned int component=0) const |
| virtual void | vector_hessian (const Point< dim > &p, std::vector< SymmetricTensor< 2, dim, double > > &values) const |
| virtual void | hessian_list (const std::vector< Point< dim > > &points, std::vector< SymmetricTensor< 2, dim, double > > &values, const unsigned int component=0) const |
| virtual void | vector_hessian_list (const std::vector< Point< dim > > &points, std::vector< std::vector< SymmetricTensor< 2, dim, double > > > &values) const |
| std::size_t | memory_consumption () const |
| Public Member Functions inherited from FunctionTime< Number > | |
| FunctionTime (const Number initial_time=Number(0.0)) | |
| virtual | ~FunctionTime () |
| Number | get_time () const |
| virtual void | set_time (const Number new_time) |
| virtual void | advance_time (const Number delta_t) |
| Public Member Functions inherited from Subscriptor | |
| 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."<< "\"<< "(Additional information: "<< arg3<< ")\"<< "See the entry in the Frequently Asked Questions of "<< "deal.II (linked to from http://www.dealii.org/) for "<< "a lot more information on what this error means and "<< "how to fix programs in which it happens.") | |
| DeclException2 (ExcNoSubscriber, char *, char *,<< "No subscriber with identifier <"<< arg2<< "> subscribes to this object of class "<< arg1<< ". Consequently, it cannot be unsubscribed.") | |
| template<class Archive > | |
| void | serialize (Archive &ar, const unsigned int version) |
Additional Inherited Members | |
| Public Attributes inherited from Function< dim > | |
| const unsigned int | n_components |
| Static Public Attributes inherited from Function< dim > | |
| static const unsigned int | dimension |
Singularity on the slit domain in 2D and 3D.
Definition at line 444 of file function_lib.h.
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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 >.
Definition at line 1394 of file function_lib.cc.
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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.
By default, this function repeatedly calls value() for each point separately, to fill the output array.
Reimplemented from Function< dim >.
Definition at line 1410 of file function_lib.cc.
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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.
By default, this function repeatedly calls vector_value() for each point separately, to fill the output array.
Reimplemented from Function< dim >.
Definition at line 1433 of file function_lib.cc.
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Return the gradient of the specified component of the function at the given point.
Reimplemented from Function< dim >.
Definition at line 1482 of file function_lib.cc.
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Compute the Laplacian of a given component at point p.
Reimplemented from Function< dim >.
Definition at line 1458 of file function_lib.cc.
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Compute the Laplacian of one component at a set of points.
Reimplemented from Function< dim >.
Definition at line 1467 of file function_lib.cc.
1.8.12