Prerequisite
Etymology
A Kaiser-Bessel function
Synopsis
A Kaiser-Bessel is described by a height, a center, a width (halfwidth) and a parameter. The parameters are enumerated by HEIGHT, CENTER, WIDTH, KBPAR. They have default values of (1, 0, 1, 2.5).
Example
KaiserBFunction<Double> sf;
sf(0); // = 1.0
Template Type Argument Requirements (T)
- T should have standard numerical operators
Thrown Exceptions
- AipsError if incorrect parameter number specified.
Member Description
KaiserBFunction() : KaiserBParam<T>()
explicit KaiserBFunction(const T &kbpar) : KaiserBParam<T>(kbpar)
Constructs the KaiserBFunction, Defaults:
height=1, center=0, width=1, kbpar=2.5.
Could not use default arguments that worked both with gcc and IRIX
KaiserBFunction(const KaiserBFunction<T> &other) : other<T>(other)
KaiserBFunction(const KaiserBFunction<W> &other) : other<T>(other)
Copy constructor (deep copy)
KaiserBFunction<T> &operator=(const KaiserBFunction<T> &other)
Copy assignment (deep copy)
virtual ~KaiserBFunction()
Destructorvirtual T eval(typename Function<T>::FunctionArg x) const
Evaluate the KaiserB at x. If a vector is used as the argument only its first element is used.
virtual Function<T> *clone() const
virtual Function<typename FunctionTraits<T>::BaseType> *cloneNonAD() const
Return a copy of this object from the heap. The caller is responsible for deleting this pointer.