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Math Help - modular arithmetic on calculators

  1. #1
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    modular arithmetic on calculators

    I had a young person ask me about modular arithmetic on calculators.
    I have had very little dealings with modular arithmetic and i didn't think it was a function on most calculators.

    I found this online modular calculator but I am confused about how it works.
    you enter the mod you want (m)- that's easy enough
    then you enter 2 numbers that you want to do arithmetic on. (a and b)
    These numbers can contain digits greater than the mod so I assume they are base 10 numbers.
    but this seems rather pointless and it isn't compatible with some of the outputs.
    For instance it won't let you divide if the divisor is too big for the mod.

    Modular Arithmetic Calculator

    Can someone please explain what is happening to me? Is the calculator working as it should? Is there a better modular calculator on the web?
    Thanks.
    Last edited by Melody2; December 12th 2013 at 06:06 AM.
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  2. #2
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    Re: modular arithmetic on calculators

    Quote Originally Posted by Melody2 View Post
    I had a young person ask me about modular arithmetic on calculators.
    I have had very little dealings with modular arithmetic and i didn't think it was a function on most calculators.
    tance it won't let you divide if the divisor is too big for the mod.
    Modular Arithmetic Calculator
    Can someone please explain what is happening to me? Is the calculator working as it should? Is there a better modular calculator on the web?.
    This is good all around tool.

    wolframalpha.com is well worth your time to explore all that it will do.
    Thanks from Melody2
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  3. #3
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    Re: modular arithmetic on calculators

    Thanks Plato,
    I have started to use the woframalpha calculator and I am aware that it is a superior tool.

    I think I keep confusing mod with base.
    No matter what mod you want you are still working in base 10.
    That's right isn't it?
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