Method for calculating the inverse of a number, and computer for

Details Method for calculating the inverse of a number, and computer for Method for calculating the inverse of a number, and computer for

1992-09-04

1993-12-28

Mai, Tan V.

Boots, shoes, and leggings

G06F 752

Patent

active

052745805

ABSTRACT:
A computer and method that can be used in digital computers to calculate the inverse I of a number D. The inverse is approximated by I2 after the application of a complementary correction Cjl to an approximation I1 obtained by linear approximation on the basis of a first value Io which in turn is obtained on the basis of an inverse table. The correction value Cjl is obtained from pre-established data CBl and Hj that are memorized in tables of reduced dimensions.

REFERENCES:
patent: 4374427 (1983-02-01), Katayama
patent: 4482975 (1984-11-01), King et al.
patent: 4797849 (1989-01-01), Nakano
patent: 4823301 (1989-04-01), Knierim
patent: 4991132 (1991-02-01), Kadota
patent: 5012438 (1991-04-01), Yamaguchi
IBM Technical Disclosure Bulletin, vol. 26, No. 3B, Aug. 1983, pp. 1537-1539, NY, C. Galano, "Fast Division".

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