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Patent Searching and Data


Title:
CALCULATION METHOD, CALCULATION DEVICE, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2022/113180
Kind Code:
A1
Abstract:
One embodiment of this invention is a calculation method comprising: a first reciprocal square root step in which a computer calculates the reciprocal square root of a positive real number A using a rapid reciprocal square root method; a second reciprocal square root step in which the computer calculates the reciprocal square root of a positive real number B using the rapid reciprocal square root method; a subtraction step in which the computer subtracts B from A; a first multiplication step in which the computer multiplies the calculation result from the first reciprocal square root step and the calculation result from the second reciprocal square root step; a second multiplication step in which the computer multiplies the calculation result from the first multiplication step and the calculation result from the subtraction step; an addition step in which the computer adds the calculation result from the first reciprocal square root step and the calculation result from the second reciprocal square root step; and a division step in which the computer divides the calculation result from the second multiplication step by the calculation result from the addition step.

Inventors:
SASAKI TAKAYUKI (JP)
TANIDA RYUICHI (JP)
KIMATA HIDEAKI (JP)
Application Number:
PCT/JP2020/043722
Publication Date:
June 02, 2022
Filing Date:
November 25, 2020
Export Citation:
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Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
International Classes:
G06F17/10
Foreign References:
JP2019046196A2019-03-22
US20020039454A12002-04-04
Attorney, Agent or Firm:
SHIGA INTERNATIONAL PATENT OFFICE (JP)
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