A Fortran Computer Program for Calculating the Linear Prolate Functions.

Abstract

The representation of band-limited and time-limited physical processes is greatly facilitated by the use of the linear prolate functions and eigenvalues. These functions possess the powerful property of orthogonality over both a finite interval and the infinite interval. A computer program called LINPRO has been developed to numerically evaluate in double-precision arithmetic the linear prolate functions and eigenvalues for a wide range of order and argument. The program is written in universal Fortran and should run on any computer that accepts this language. This report first describes the theory of the prolate spheroidal wave functions used in the construction of the linear prolate functions and eigenvalues. Next the principal features of the program LINPRO are discussed. Included are descriptions of the parameter input, allowable parameter ranges, required computer storage, computational procedure, accuracy of the results, computation time, and printed output. Finally a sample output and a computer listing of LINPRO are attached as Appendixes. (Author)

Document Details

Document Type
Technical Report
Publication Date
May 10, 1976
Accession Number
ADA025210

Entities

People

  • A. L. Van Buren

Organizations

  • United States Naval Research Laboratory

Tags

DTIC Thesaurus Topics

  • Accuracy
  • Arithmetic
  • Computations
  • Computer Programs
  • Computers
  • Construction
  • Eigenvalues
  • Intervals
  • Language
  • Mathematics
  • Orthogonality
  • Precision
  • Wave Functions

Readers

  • Calculus or Mathematical Analysis
  • Computer Science.