Multiple-precision arithmetic and the exact calculation of the 3-j and 9-j symbols

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Multiple-precision arithmetic and the exact calculation of the 3-j and 9-j symbols

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Communications of the ACM archive
Volume 7 , Issue 11 (November 1964) table of contents

Pages: 657 - 659

Year of Publication: 1964

ISSN:0001-0782

Authors

Robert M. Baer	Univ. of California, Berkeley
Martin G. Redlich	Univ. of California, Berkeley

Publisher

ACM New York, NY, USA

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Downloads (6 Weeks): 7, Downloads (12 Months): 37, Citation Count: 1

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ABSTRACT

Described in this paper is a system of general-purpose multiple-precision fixed-point routines and their use in subroutines which calculate exactly the quantum-mechanical 3-j, 6-j and 9-j symbols of large arguments.

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	WIGNER, E.P. On the matrices which reduce the Kronecker products of representations of simply reducible groups. Circa 1939, unpublished.
	2	RACAH, G. Theory of complex spectra II. Phys. Rev. 62, 438 (1942).
	3	ROTENBERG, M., BIVINS, R., METROPOLIS, N., AND WOOTEN, J. K., JR. The 8-j and 6-j Symbols. Technology Press, Cambridge, Mass., 1959.
	4	SMITH, K., AND STEVENSON, J. W. A table of Wigner 9-j coefficients for integral and half-integral values of the parameters. Rep. 5776, Argonne Nat. Lab., 1957, unpublished.
	5	SMITH, K. Supplement to a table of Wigner 9-j coefficients for integral and half-integral values of the parameters. Rep. 5860, Argonne Nat. Lab., 1958, unpublished.