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Reference documentation for deal.II version 9.1.1
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#include <deal.II/base/function_bessel.h>
Public Member Functions | |
Bessel1 (const unsigned int order, const double wave_number, const Point< dim > center=Point< dim >()) | |
virtual double | value (const Point< dim > &points, const unsigned int component=0) const override |
virtual void | value_list (const std::vector< Point< dim >> &points, std::vector< double > &values, const unsigned int component=0) const override |
virtual Tensor< 1, dim > | gradient (const Point< dim > &p, const unsigned int component=0) const override |
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Function (const unsigned int n_components=1, const time_type initial_time=0.0) | |
virtual | ~Function () override=0 |
Function & | operator= (const Function &f) |
virtual void | vector_value (const Point< dim > &p, Vector< double > &values) const |
virtual void | vector_value_list (const std::vector< Point< dim >> &points, std::vector< 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 double | laplacian (const Point< dim > &p, const unsigned int component=0) 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 |
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 |
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FunctionTime (const Number initial_time=Number(0.0)) | |
virtual | ~FunctionTime ()=default |
Number | get_time () const |
virtual void | set_time (const Number new_time) |
virtual void | advance_time (const Number delta_t) |
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Subscriptor () | |
Subscriptor (const Subscriptor &) | |
Subscriptor (Subscriptor &&) noexcept | |
virtual | ~Subscriptor () |
Subscriptor & | operator= (const Subscriptor &) |
Subscriptor & | operator= (Subscriptor &&) noexcept |
void | subscribe (std::atomic< bool > *const validity, const std::string &identifier="") const |
void | unsubscribe (std::atomic< bool > *const validity, const std::string &identifier="") const |
unsigned int | n_subscriptions () const |
template<typename StreamType > | |
void | list_subscribers (StreamType &stream) const |
void | list_subscribers () const |
template<class Archive > | |
void | serialize (Archive &ar, const unsigned int version) |
Additional Inherited Members | |
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using | time_type = typename FunctionTime< typename numbers::NumberTraits< double >::real_type >::time_type |
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using | time_type = Number |
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static ::ExceptionBase & | ExcInUse (int arg1, std::string arg2, std::string arg3) |
static ::ExceptionBase & | ExcNoSubscriber (std::string arg1, std::string arg2) |
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const unsigned int | n_components |
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static const unsigned int | dimension |
The Bessel functions of first kind or positive integer order.
Definition at line 37 of file function_bessel.h.
Functions::Bessel1< dim >::Bessel1 | ( | const unsigned int | order, |
const double | wave_number, | ||
const Point< dim > | center = Point<dim>() |
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Constructor. wave_number
must be nonnegative.
Definition at line 2267 of file function_lib.cc.
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overridevirtual |
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 2279 of file function_lib.cc.
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overridevirtual |
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 2289 of file function_lib.cc.
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overridevirtual |
Return the gradient of the specified component of the function at the given point.
Reimplemented from Function< dim >.
Definition at line 2305 of file function_lib.cc.