Napier's Bones
Of plural and calculator. May also be referred to as Napier's rods.
A set of graduated rods formerly used to do multiplication and division by a method invented by John Napier.
This concept's ID is @1~20731
Of plural and calculator. May also be referred to as Napier's rods.
A set of graduated rods formerly used to do multiplication and division by a method invented by John Napier.
This concept's ID is @1~20731