Unlike the picture, there are no decimals. The rightmost column is the unit column.
Hi, the abacus is Chinese invention, not japanese !!!
i never made any claim to who invented the abacus. i'm just clarifying that this problem pertains to the japanese soroban, which is specifically designed for base-10 arithmetic.
Link provided to webhome.idirect.com appears to be down. Here is another link:
i dont get it..how does it work?
Make a Palindrome Number
System of equations
"Low : High - Low : High - Turn around " -- Create a subindices vector
intersection of matrices
Multiples of a Number in a Given Range
Solve the Sudoku Row
Project Euler: Problem 16, Sums of Digits of Powers of Two
Great Circle Distance
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