Gresham College Lectures

Arithmetic by Computer and by Human

• Gresham College

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0:00 | 45:39
Long multiplication, long division and logarithms are, for many, dim-remembered memories, and few now use these skills. We will examine some of the tools that help us, from the abacus to calculators. Computers are the ultimate arithmetic tool but their method is one of the oldest, used by ancient Egyptians. We will demonstrate ways to impress friends with quick calculations and also show the link between ancient Egyptian arithmetic and today's computers.

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