Detailed Description

template<class vec_t, class vec2_t = vec_t>
class o2scl::interp_cspline< vec_t, vec2_t >

See also the Interpolation section of the O2scl User's guide.

By default, this class uses natural boundary conditions, where the second derivative vanishes at each end point. Extrapolation effectively assumes that the second derivative is linear outside of the endpoints.

Definition at line 425 of file interp.h.

Public Types
typedef boost::numeric::ublas::vector< double >	ubvector

typedef boost::numeric::ublas::vector_slice< ubvector >	ubvector_slice

typedef boost::numeric::ublas::vector_range< ubvector >	ubvector_range

typedef boost::numeric::ublas::slice	slice

typedef boost::numeric::ublas::range	range

Public Member Functions
	interp_cspline ()
	Create a base interpolation object with natural or periodic boundary conditions.

virtual void	set (size_t size, const vec_t &xa, const vec2_t &ya)
	Initialize interpolation routine. More...

virtual double	eval (double x0) const
	Give the value of the function .

virtual double	deriv (double x0) const
	Give the value of the derivative $y^{\prime}(x=x_0)$ .

virtual double	deriv2 (double x0) const
	Give the value of the second derivative $y^{\prime \prime}(x=x_0)$ .

virtual double	integ (double a, double b) const
	Give the value of the integral $\int_a^{b}y(x)~dx$ .

virtual const char *	type () const
	Return the type, `"interp_cspline"`.

Public Member Functions inherited from o2scl::interp_base< vec_t, vec2_t >
virtual double	operator() (double x0) const
	Give the value of the function .

Protected Member Functions
void	coeff_calc (const ubvector &c_array, double dy, double dx, size_t index, double &b, double &c2, double &d) const
	Compute coefficients for cubic spline interpolation.

Protected Member Functions inherited from o2scl::interp_base< vec_t, vec2_t >
double	integ_eval (double ai, double bi, double ci, double di, double xi, double a, double b) const
	An internal function to assist in computing the integral for both the cspline and Akima types.

Protected Attributes
o2scl_linalg::ubvector_4_mem	p4m
	Memory for the tridiagonalization.

Storage for cubic spline interpolation
ubvector	c

ubvector	g

ubvector	diag

ubvector	offdiag

Protected Attributes inherited from o2scl::interp_base< vec_t, vec2_t >
search_vec< const vec_t >	svx
	To perform binary searches. More...

const vec_t *	px
	Independent vector.

const vec2_t *	py
	Dependent vector.

size_t	sz
	Vector size.

Private Member Functions
	interp_cspline (const interp_cspline< vec_t, vec2_t > &)

interp_cspline< vec_t, vec2_t > &	operator= (const interp_cspline< vec_t, vec2_t > &)

Additional Inherited Members
Public Attributes inherited from o2scl::interp_base< vec_t, vec2_t >
size_t	min_size
	The minimum size of the vectors to interpolate between. More...

Member Function Documentation

◆ set()

template<class vec_t, class vec2_t = vec_t>

virtual void o2scl::interp_cspline< vec_t, vec2_t >::set	(	size_t	size,
		const vec_t &	xa,
		const vec2_t &	ya
	)

inlinevirtual

Natural boundary conditions

Implements o2scl::interp_base< vec_t, vec2_t >.

Reimplemented in o2scl::interp_cspline_peri< vec_t, vec2_t >.

Definition at line 484 of file interp.h.

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

/home/awsteiner/wcs/o2scl/src/base/interp.h

Detailed Description

template<class vec_t, class vec2_t = vec_t> class o2scl::interp_cspline< vec_t, vec2_t >

Public Types

Public Member Functions

Protected Member Functions

Protected Attributes

Private Member Functions

Additional Inherited Members

Member Function Documentation

◆ set()

template<class vec_t, class vec2_t = vec_t>
class o2scl::interp_cspline< vec_t, vec2_t >