m_spline_interp Module Reference

Module for cubic spline interpolation. More...

Data Types
type	spline_t

Functions/Subroutines
subroutine, public	spline_set_coeffs (x, y, n, spl)
	Calculate coefficients for cubic spline interpolation.
pure elemental real(dp) function, public	spline_evaluate (u, spl)

Detailed Description

Module for cubic spline interpolation.

Author: Jannis Teunissen

This code is based on:

1. spline.f (https://www.netlib.org/fmm/spline.f)
2. spline.f90 (translation of spline.f, https://ww2.odu.edu/~agodunov/computing/programs/book2/Ch01/spline.f90)

License: the above two files do not specify a license, so I assume they are in the public domain, as is this code.

Function/Subroutine Documentation

spline_evaluate()

pure elemental real(dp) function, public m_spline_interp::spline_evaluate	(	real(dp), intent(in)	u,
		type(spline_t), intent(in)	spl )

Parameters

[in]	u	Evaluate at this coordinate
[in]	spl	Spline data

Definition at line 153 of file m_spline_interp.f90.

spline_set_coeffs()

subroutine, public m_spline_interp::spline_set_coeffs	(	real(dp), dimension(n), intent(in)	x,
		real(dp), dimension(n), intent(in)	y,
		integer, intent(in)	n,
		type(spline_t), intent(out)	spl )

Calculate coefficients for cubic spline interpolation.

Parameters

[in]	n	Size of tabulated data
[in]	x	Tabulated coordinates (in strictly increasing order)
[in]	y	Tabulated values

Definition at line 42 of file m_spline_interp.f90.