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3 Pages

Natural Science
Course Code
NATS 1700

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9302011 13400 PM NATS Lecture 3 slides notes Every now and then someones born with the unusual ability to memorizeretain large s for a long period of time They can recall these numbers after weeks and do the math for large s mentally without any external aids They can achieve this by memorizing intermediate results and using when neededWe can typically multiple numbers about 5 digits long and only for a short period of time so we need calculatorsThe most ancient counting aids were vertical lines drawn on sandground and pebbles were placedSuch counters were made of a slab of stone with etched grooves or a piece of cloth with paint
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