Accession Number:

AD0271370

Title:

RATIONAL APPROXIMATION OF DECAY-TYPE FUNCTIONS

Descriptive Note:

Corporate Author:

UPPSALA UNIV (SWEDEN)

Personal Author(s):

Report Date:

1961-10-01

Pagination or Media Count:

1.0

Abstract:

Numerically given functions with exponential asymptotic behavior are approximated by rational expressions. The numerators are obtained from the nodes of the functions, and the denominators are powers of polynomials, whose coefficients are obtained by expansion in orthogonal polynominals. Different weights are discussed for uniform absolute or relative errors. An iterative procedure is further described to improve the least-squares approximation to one of Chebyshev-type best fit. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE