TOMS461
Cubic Spline Solutions to a Class of Functional Differential Equations

TOMS461 is a FORTRAN77 library which implements ACM TOMS algorithm 461, which uses cubic splines to solve a class of functional differential equations.

The text of many ACM TOMS algorithms is available online through ACM: http://www.acm.org/pubs/calgo or NETLIB: http://www.netlib.org/toms/index.html.

Languages:

TOMS461 is available in a FORTRAN77 version.

Reference:

1. Forbes Burkowski, WD Hoskins,
   Algorithm 461: Cubic Spline Solutions to a Class of Functional Differential Equations,
   Communications of the ACM,
   Volume 16, Number 10, October 1973, pages 635-637.

Source Code:

• toms461.f, the source code.
• toms461.sh, commands to compile the source code.

Examples and Tests:

• toms461_prb.f, a sample calling program.
• toms461_prb.sh, commands to compile, link and run the sample calling program.
• toms461_prb_output.txt, the output file.

List of Routines:

• SPNBVP calculates a piecewise continuous approximation to the solution of the boundary value problem.
• GAGB is used when dealing with solution values at the end points.
• SOLVE is given solution values and quickly computes the second derivative values needed for the spline approximation;

You can go up one level to the FORTRAN77 source codes.