Accession Number:

ADA210118

Title:

Significant Digit Computation of the Incomplete Beta Function Ratios

Descriptive Note:

Final rept.

Corporate Author:

NAVAL SURFACE WARFARE CENTER DAHLGREN VA

Personal Author(s):

• DiDonato, Armido R.
• Morris, Jr, Alfred H.

Report Date:

1988-11-01

Pagination or Media Count:

81.0

Abstract:

An algorithm is given for evaluating the incomplete beta function ratio 1 sub x a,b and its complement 1-I sub x a,b. Two new procedures are used with classical results. A listing of a transportable Fortran subroutine using this algorithm is given. The subroutine is accurate to 14 significant digits when the precision is not restricted by inherent error. Keywords Computations.

Descriptors:

• *COMPUTATIONS
• *SUBROUTINES
• RATIOS
• TRANSPORTABLE
• FORTRAN
• FUNCTIONS
• ALGORITHMS

Subject Categories:

• Statistics and Probability
• Computer Programming and Software

Distribution Statement:

APPROVED FOR PUBLIC RELEASE