True, that does remove the necessity of the table. However, I was checking how the Babylonians did it and the article that I read seems to indicate that they used base-60 tables. On a different note, does anyone know if this method has been exploited on CPUs without multiplication circuitry in the ALU?

According to Wikipedia ([1]), Charles Putney implemented the quarter-square method for the 6502.

[1] - https://en.wikipedia.org/wiki/Multiplication_algorithm#Quart...

Thanks for that pointer! Fascinating to see the multiplication method invented by the Babylonians being used on a microprocessor.

sum of odd numbers, in shower tiles: https://en.wikipedia.org/wiki/Proof_without_words#/media/Fil...