Cube root calculation apparatus

Details Cube root calculation apparatus Cube root calculation apparatus

1990-08-08

1992-01-14

Shaw, Dale M.

Boots, shoes, and leggings

G06F 738

Patent

active

050816063

ABSTRACT:
An apparatus for calculating the cube root of a number has: a first memory for initially storing a cube root extraction number from which the cube root is to be extracted; a second memory for initially storing a first number which is predetermined based on said cube root extraction number; a third memory for initially storing a second predetermined number; a fourth memory for initially storing a third predetermined number; and a fifth memory for storing a number. The relation in size between the number stored in the first memory and the number stored in the second memory is judged. When the number stored in the first memory is not smaller than the number stored in the second memory, the number stored in the second memory from the number stored in the first memory, a number generated from the number stored in the third memory is added to the number stored in the second memory means, and a fourth predetermined number is added to the number stored in the fifth memory. When the number stored in the first memory is smaller than the number stored in the second memory, a number generated from the number stored in the fourth memory is substracted from the number stored in the second memory, and the number stored in the fifth memory is shifted to the left. Until predetermined conditions are met, the above processes are repeated, and the number stored in said fifth memory is determined as the cube root.

REFERENCES:
patent: 4075705 (1978-02-01), Kawabata et al.
patent: 4298951 (1981-11-01), Hall

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