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Math Help - Calculator Button Problem

  1. #1
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    Calculator Button Problem

    On a normal scientific calculator that only has the following buttons:
    Plus key
    Minus Key
    0-9 Number Keys
    Memory Button
    Reciprocal Key

    Can you derive a formula for finding the product of any integer A and B?

    Thanks!
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  2. #2
    MHF Contributor

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    Re: Calculator Button Problem

    That's NOT a "normal scientific calculator"! To divide A by B, multiply A times 1/B. With no multiplication button, "multiply" A times 1/B by adding 1/B to itself A times.
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