Duh, ooops. Would you believe abacus? On Feb 25, at 9:11 PM, Daniel Say wrote: No, "Napier's bones" are a mulitplication table set of rods, with a multiplication table on each of the four faces of the long square-cross-section rods.
Duh, ooops. Would you believe abacus? On Feb 25, at 9:11 PM, Daniel Say wrote:
No, "Napier's bones" are a mulitplication table set of rods, with a multiplication table on each of the four faces of the long square-cross-section rods.