TEST_INTERP
Interpolation Test Data

TEST_INTERP is a FORTRAN90 library which defines problems that may be used to test interpolation algorithms.

Licensing:

The computer code and data files described and made available on this web page are distributed under the GNU LGPL license.

Related Data and Programs:

DIVDIF is a FORTRAN90 library which includes many routines to construct and evaluate divided difference interpolants.

INTERP is a FORTRAN90 library which can compute interpolants to data.

PPPACK is a FORTRAN90 library which implements Carl de Boor's piecewise polynomial functions, including, particularly, cubic splines.

SPLINE is a FORTRAN90 library which includes many routines to construct and evaluate spline interpolants and approximants.

TEST_APPROX is a FORTRAN90 library which defines tests for approximation and interpolation algorithms.

Reference:

1. Fred Fritsch, Ralph Carlson,
   Monotone Piecewise Cubic Interpolation,
   SIAM Journal on Numerical Analysis,
   Volume 17, Number 2, April 1980, pages 238-246.
2. Larry Irvine, Samuel Marin, Philip Smith,
   Constrained Interpolation and Smoothing,
   Constructive Approximation,
   Volume 2, Number 1, December 1986, pages 129-151.
3. ETY Lee,
   Choosing Nodes in Parametric Curve Interpolation,
   Computer-Aided Design,
   Volume 21, Number 6, July/August 1989, pages 363-370.
4. Hans-Joerg Wenz,
   Interpolation of Curve Data by Blended Generalized Circles,
   Computer Aided Geometric Design,
   Volume 13, Number 8, November 1996, pages 673-680.

Source Code:

• test_interp.f90, the source code.
• test_interp.csh, commands to compile the source code.

Examples and Tests:

• test_interp_prb.f90, a sample calling program.
• test_interp_prb.csh, commands to compile and run the sample program.
• test_interp_prb_output.txt, the output file.

List of Routines:

• P00_DATA returns the dependent data for any problem.
• P00_DATA_NUM returns the number of data points for any problem.
• P00_DIM_NUM returns the spatial dimension for any problem.
• P00_PROB_NUM returns the number of test problems.
• P00_STORY prints the "story" for any problem.
• P01_DATA returns the dependent data for problem 01.
• P01_DATA_NUM returns the number of data points for problem 01.
• P01_DIM_NUM returns the spatial dimension for problem 01.
• P01_STORY prints the "story" for problem 1.
• P02_DATA returns the dependent data for problem 02.
• P02_DATA_NUM returns the number of data points for problem 02.
• P02_DIM_NUM returns the spatial dimension for problem 02.
• P02_STORY prints the "story" for problem 2.
• P03_DATA returns the dependent data for problem 03.
• P03_DATA_NUM returns the number of data points for problem 03.
• P03_DIM_NUM returns the spatial dimension for problem 03.
• P03_STORY prints the "story" for problem 3.
• P04_DATA returns the dependent data for problem 04.
• P04_DATA_NUM returns the number of data points for problem 04.
• P04_DIM_NUM returns the spatial dimension for problem 04.
• P04_STORY prints the "story" for problem 4.
• P05_DATA returns the dependent data for problem 05.
• P05_DATA_NUM returns the number of data points for problem 05.
• P05_DIM_NUM returns the spatial dimension for problem 05.
• P05_STORY prints the "story" for problem 5.
• TIMESTAMP prints the current YMDHMS date as a time stamp.

You can go up one level to the FORTRAN90 source codes.