last modified: 01-FEB-1977 | catalog | categories | new | search |

NEA-0462 SPLINE.

SPLINE, Spline Interpolation Function

top ]
1. NAME OR DESIGNATION OF PROGRAM:  SPLINE.
top ]
2. COMPUTERS
To submit a request, click below on the link of the version you wish to order. Only liaison officers are authorised to submit online requests. Rules for requesters are available here.
Program name Package id Status Status date
SPLINE NEA-0462/01 Tested 01-FEB-1977

Machines used:

Package ID Orig. computer Test computer
NEA-0462/01 IBM 370 series IBM 370 series
top ]
3. NATURE OF PHYSICAL PROBLEM SOLVED

The problem is to obtain an interpolated function, as smooth as possible, that passes through given points. The derivatives of these functions are continuous up to the (2Q-1)th order.
The program consists of the following two subprograms: ASPLERQ. Transport of relations method for the spline functions of interpolation.
SPLQ. Spline interpolation.
top ]
4. METHOD OF SOLUTION:  The methods are described in the reference under item 10.
top ]
5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM
top ]
6. TYPICAL RUNNING TIME
top ]
7. UNUSUAL FEATURES: UNUSUAL FEATURES OF THE PROGRAM
top ]
8. RELATED OR AUXILIARY PROGRAMS: RELATED AND AUXILIARY PROGRAMS
top ]
9. STATUS
Package ID Status date Status
NEA-0462/01 01-FEB-1977 Tested at NEADB
top ]
10. REFERENCES

- J.P. Laurent:
  'Approximation et Optimisation'
  Editor Hermann (1972).
top ]
11. MACHINE REQUIREMENTS

Depending on the number of data. The program is expected to work with LCM or ECS.
top ]
12. PROGRAMMING LANGUAGE(S) USED
Package ID Computer language
NEA-0462/01 FORTRAN-IV
top ]
13. OPERATING SYSTEM OR MONITOR UNDER WHICH PROGRAM IS EXECUTED:  SCOPE 3.4.2 (CDC 7600). O.S./370 (IBM 370).
top ]
14. ANY OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS

To
optimize the resolution, the CDC version uses the two routines READEC and WRITEC to transfer data from LCM (or ECS) to main core or vice versa.
top ]
15. NAME AND ESTABLISHMENT OF AUTHOR

   Y. Allouard
   Franlab Marine
   4, Avenue de Bois Preau
   92503 Rueil Malmaison Cedex
top ]
16. MATERIAL AVAILABLE
NEA-0462/01
File name File description Records
NEA0462_01.001 'ASPLERQ','SPLQ' ROUTINES FORTRAN IV 280
NEA0462_01.002 'CALCUL','DON' ROUTINES-DRIVER FOR TEST 70
NEA0462_01.003 'READEC','WRITEC','RSL','SIMQ' ROUTINES-IBM 154
NEA0462_01.004 JCL FOR SAMPLE PROBLEM 13
NEA0462_01.005 TEST CASE PRINTED OUTPUT 179
top ]
17. CATEGORIES
  • P. General Mathematical and Computing System Routines

Keywords: interpolation, optimization, special functions, spline functions.