Title: Division on abacus without pithy formula method manipulated by double-hand
Application Number: 97105349 Application Date: 1997.07.01
Publication Number: 1204793 Publication Date: 1999.01.13
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: G06C1/00
Applicant(s) Name: Ma Jingyuan Address: 152400
Inventor(s) Name:
Attorney & Agent: chen yabeng
Abstract:
     A dual-hand operation method for division calculation on abacus without instructions in rhyme features that after the digit positions are fixed on abacus, the division calculation can conducted by both hands in such manner that the sub-quotient are found out step-by-step beginning from the initial digit of divisor and terminating at the last digit of divisor and the quotient is obtained by addition-subtraction calculations of sub-quotients on the right. Its advantages are high speed and accuracy, and dual hands operation.
Time: 12
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