Algorithm 743: WAPR--a Fortran routine for calculating real values of the W-function

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Algorithm 743: WAPR--a Fortran routine for calculating real values of the W-function

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ACM Transactions on Mathematical Software (TOMS) archive
Volume 21 , Issue 2 (June 1995) table of contents

Pages: 172 - 181

Year of Publication: 1995

ISSN:0098-3500

Authors

D. A. Barry	Univ. of Western Australia, Nedlands, W.A., Australia
S. J. Barry	Griffith Univ., Nathan, Queensland, Australia
P. J. Culligan-Hensley	Univ. of Western Australia, Nedlands, W.A., Australia

Publisher

ACM New York, NY, USA

Bibliometrics

Downloads (6 Weeks): 6, Downloads (12 Months): 53, Citation Count: 2

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appendices and supplements abstract references cited by index terms review collaborative colleagues peer to peer

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Software for "WAPR: a Fortran routine for calculating real values of the W-function"

ABSTRACT

We implement W-function approximation scheme described by Barry et al. A range of tests of the approximations is included so that the code can be assessed on any given machine. Users can calculate W(x) by specifying x itself or by specifying an offset from −exp(−1), the latter option necessitated by rounding errors that can arise for x close to −exp(−1). Results of running the code on a SUN workstation are included.

REFERENCES

Note: OCR errors may be found in this Reference List extracted from the full text article. ACM has opted to expose the complete List rather than only correct and linked references.

	1	D. A. Barry , P. J. Culligan-Hensley , S. J. Barry, Real values of the W-function, ACM Transactions on Mathematical Software (TOMS), v.21 n.2, p.161-171, June 1995 [doi>10.1145/203082.203084]
	2	CHAR, B. W., GEDDES, K. O., GONNET, G. H., LEONG, B. L., MONAGAN, M. B., AND WATT, S. M. 1991. Maple V Library Reference Manual. Springer-Verlag, New York.
	3	F. N. Fritsch , R. E. Shafer , W. P. Crowley, Solution of the transcendental equation wew = x, Communications of the ACM, v.16 n.2, p.123-124, Feb. 1973 [doi>10.1145/361952.361970]

CITED BY 2

	John P. Boyd, Chebyshev polynomial expansions for simultaneous approximation of two branches of a function with application to the one-dimensional Bratu equation, Applied Mathematics and Computation, v.143 n.2-3, p.189-200, 10 November 2003
	D. A. Barry , P. J. Culligan-Hensley , S. J. Barry, Real values of the W-function, ACM Transactions on Mathematical Software (TOMS), v.21 n.2, p.161-171, June 1995