LITERATURE: Historic Calculating: Roman Multiplication
Roemische Multiplikation Wolfgang Back (in German)
Multiplkation römischer Zahlen Manfred Boergens (in German)
Roman Multiplication Algorithm halve left, double right: A Different Kind of Multiplication (from Dr. David P. Stern, Method extended to binary numbers.
Binary multiplication on the computer and the ethiopian way same method explained using 3 registers in binary (from

Francis Massen
last edited: 31 Oct 2010