Method and apparatus for high speed determination of j.sup.th ro

Details Method and apparatus for high speed determination of j.sup.th ro Method and apparatus for high speed determination of j.sup.th ro

1991-06-13

1993-10-12

Nguyen, Long T.

Boots, shoes, and leggings

G06F 738

Patent

active

052532151

ABSTRACT:
A method and apparatus utilizes "Lindsley's Law," a polynomial convergence algorithm, suitable even for high convergence rates, to implement more efficient reciprocal j.sup.th root, and hence, j.sup.th root itself, computations of desired inputs. The invention emphasizes multiplication, instead of addition, as the iterative operator, thereby reducing error at a rate relative to a power of a selected convergence rate.

REFERENCES:
patent: 4607343 (1986-08-01), Chevillat et al.
"WTL 1032/1033 Floating Point Division/Square Root/IEEE Arithmetic", Weitek Corporation's Application Note, 1983.
Ho, "Approximating Divisions by a Constant", IBM Technical Disclosure Bulletin, vol. 22, No. 4, Sep. 1979, pp. 1554-1557.

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