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  3. Would Maths 'Work' in a Different Base?

Would Maths 'Work' in a Different Base?

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  • B Ben Breeg

    So there I was, wallowing in the bath when it suddenly occurs to me 'would maths work the same if we used a different base.' What I mean is, lets say instead of the 10 fingers that we have and on which our decimal counting system is based we had say 14 fingers so we would be counting in base 14 as the norm. Would things like Pythagoras theorem, the Fibonacci sequence, Pi, prime numbers, calculus, square roots, sins, cosines and tangents work? Not being a mathematician, I can't get my head round whether these would work or not. Intuition tells me it would. Would this work in base 14? http://news.bbc.co.uk/1/hi/sci/tech/2911945.stm[^] Does Riemann's hypothesis work in any base? What do the great and good think?

    I am the Breeg, goo goo g'joob Aici zace un om despre care nu sestie prea mult

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    Slacker007
    wrote on last edited by
    #4

    Benjamin Breeg wrote:

    wallowing in the bath

    You need to take more showers. :)

    -- ** You don't hire a handyman to build a house, you hire a carpenter. ** Jack of all trades and master of none.

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    • B Ben Breeg

      So there I was, wallowing in the bath when it suddenly occurs to me 'would maths work the same if we used a different base.' What I mean is, lets say instead of the 10 fingers that we have and on which our decimal counting system is based we had say 14 fingers so we would be counting in base 14 as the norm. Would things like Pythagoras theorem, the Fibonacci sequence, Pi, prime numbers, calculus, square roots, sins, cosines and tangents work? Not being a mathematician, I can't get my head round whether these would work or not. Intuition tells me it would. Would this work in base 14? http://news.bbc.co.uk/1/hi/sci/tech/2911945.stm[^] Does Riemann's hypothesis work in any base? What do the great and good think?

      I am the Breeg, goo goo g'joob Aici zace un om despre care nu sestie prea mult

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      AspDotNetDev
      wrote on last edited by
      #5

      14 in base-10 is the same as E in base-14 (though perhaps then we'd call it base-E). The relations are all the same, the numbers would just be presented differently. Consider, for example, that the approximate value of pie is just as easy to represent on your computer in binary (base-2) as it is on paper using base-10. Dividing by 2 in any number system is just cutting in half.

      [Managing Your JavaScript Library in ASP.NET]

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      • B Ben Breeg

        So there I was, wallowing in the bath when it suddenly occurs to me 'would maths work the same if we used a different base.' What I mean is, lets say instead of the 10 fingers that we have and on which our decimal counting system is based we had say 14 fingers so we would be counting in base 14 as the norm. Would things like Pythagoras theorem, the Fibonacci sequence, Pi, prime numbers, calculus, square roots, sins, cosines and tangents work? Not being a mathematician, I can't get my head round whether these would work or not. Intuition tells me it would. Would this work in base 14? http://news.bbc.co.uk/1/hi/sci/tech/2911945.stm[^] Does Riemann's hypothesis work in any base? What do the great and good think?

        I am the Breeg, goo goo g'joob Aici zace un om despre care nu sestie prea mult

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        Luc Pattyn
        wrote on last edited by
        #6

        Benjamin Breeg wrote:

        Not being a mathematician, I can't get my head round ...

        You don't have to be a mathematician to understand that a number is an abstract quantity, and does not need digits to exist and have a meaning. It is just most humans seem to need digits to visualize numbers, and most of them do that in decimal. BTW: do you really think you can prove your computer performs its calculations in binary arithmetic? :)

        Luc Pattyn [My Articles] Nil Volentibus Arduum

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        • L Luc Pattyn

          Benjamin Breeg wrote:

          Not being a mathematician, I can't get my head round ...

          You don't have to be a mathematician to understand that a number is an abstract quantity, and does not need digits to exist and have a meaning. It is just most humans seem to need digits to visualize numbers, and most of them do that in decimal. BTW: do you really think you can prove your computer performs its calculations in binary arithmetic? :)

          Luc Pattyn [My Articles] Nil Volentibus Arduum

          The quality and detail of your question reflects on the effectiveness of the help you are likely to get.
          Please use <PRE> tags for code snippets, they improve readability.
          CP Vanity has been updated to V2.3

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          AspDotNetDev
          wrote on last edited by
          #7

          Luc Pattyn wrote:

          do you really think you can prove your computer performs its calculations in binary arithmetic?

          You think that's air you're breathing?

          [Managing Your JavaScript Library in ASP.NET]

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          • B Ben Breeg

            So there I was, wallowing in the bath when it suddenly occurs to me 'would maths work the same if we used a different base.' What I mean is, lets say instead of the 10 fingers that we have and on which our decimal counting system is based we had say 14 fingers so we would be counting in base 14 as the norm. Would things like Pythagoras theorem, the Fibonacci sequence, Pi, prime numbers, calculus, square roots, sins, cosines and tangents work? Not being a mathematician, I can't get my head round whether these would work or not. Intuition tells me it would. Would this work in base 14? http://news.bbc.co.uk/1/hi/sci/tech/2911945.stm[^] Does Riemann's hypothesis work in any base? What do the great and good think?

            I am the Breeg, goo goo g'joob Aici zace un om despre care nu sestie prea mult

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            B Offline
            Bassam Abdul Baki
            wrote on last edited by
            #8

            For the most part, yes. There are some things that work in some bases, but not in others, even in some complex bases. A hexadecimal representation of pi was discovered a while back, but no decimal representation is possible (I think).

            Web - BM - RSS - Math - LinkedIn

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            • B Ben Breeg

              So there I was, wallowing in the bath when it suddenly occurs to me 'would maths work the same if we used a different base.' What I mean is, lets say instead of the 10 fingers that we have and on which our decimal counting system is based we had say 14 fingers so we would be counting in base 14 as the norm. Would things like Pythagoras theorem, the Fibonacci sequence, Pi, prime numbers, calculus, square roots, sins, cosines and tangents work? Not being a mathematician, I can't get my head round whether these would work or not. Intuition tells me it would. Would this work in base 14? http://news.bbc.co.uk/1/hi/sci/tech/2911945.stm[^] Does Riemann's hypothesis work in any base? What do the great and good think?

              I am the Breeg, goo goo g'joob Aici zace un om despre care nu sestie prea mult

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              G Offline
              Gregory Gadow
              wrote on last edited by
              #9

              Yes and no. With sequences of whole numbers, base does not matter. However, some properties of a sequence, such as the "shallow diagonal" property of the Fibonacci sequence, take on different characteristics in different bases. Geometric values, such as pi, phi and e, will be eqivalent regardless of base: given any circle, the ratio of its circumference and its diameter will equal pi regardless of what base you are using. The most notable problem when using different bases is the representation of a fractional part. For example, the ratio of 1/10 in base-10 evaluates to a rational number, 0.1. The eqivalent in base-2, 1/1010, evaluates to an irrational number, 0.000110011.... There is a whole branch of mathematics that looks at translation between bases, although I cannot remember what that field is.

              B S 2 Replies Last reply
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              • G Gregory Gadow

                Yes and no. With sequences of whole numbers, base does not matter. However, some properties of a sequence, such as the "shallow diagonal" property of the Fibonacci sequence, take on different characteristics in different bases. Geometric values, such as pi, phi and e, will be eqivalent regardless of base: given any circle, the ratio of its circumference and its diameter will equal pi regardless of what base you are using. The most notable problem when using different bases is the representation of a fractional part. For example, the ratio of 1/10 in base-10 evaluates to a rational number, 0.1. The eqivalent in base-2, 1/1010, evaluates to an irrational number, 0.000110011.... There is a whole branch of mathematics that looks at translation between bases, although I cannot remember what that field is.

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                Bassam Abdul Baki
                wrote on last edited by
                #10

                No idea, but p-adic[^] numbers are cool.

                Web - BM - RSS - Math - LinkedIn

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                • B Bassam Abdul Baki

                  For the most part, yes. There are some things that work in some bases, but not in others, even in some complex bases. A hexadecimal representation of pi was discovered a while back, but no decimal representation is possible (I think).

                  Web - BM - RSS - Math - LinkedIn

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                  AspDotNetDev
                  wrote on last edited by
                  #11

                  Bassam Abdul-Baki wrote:

                  A hexadecimal representation of pi was discovered a while back, but no decimal representation is possible

                  Huh? Then what is 3.14159...

                  [Managing Your JavaScript Library in ASP.NET]

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                  • A AspDotNetDev

                    14 in base-10 is the same as E in base-14 (though perhaps then we'd call it base-E). The relations are all the same, the numbers would just be presented differently. Consider, for example, that the approximate value of pie is just as easy to represent on your computer in binary (base-2) as it is on paper using base-10. Dividing by 2 in any number system is just cutting in half.

                    [Managing Your JavaScript Library in ASP.NET]

                    L Offline
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                    Lost User
                    wrote on last edited by
                    #12

                    AspDotNetDev wrote:

                    Dividing by 2 in any number system is just cutting in half.

                    In Binary, it's cutting 10 in 0.1

                    MVVM# - See how I did MVVM my way ___________________________________________ Man, you're a god. - walterhevedeich 26/05/2011 .\\axxx (That's an 'M')

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                    • A AspDotNetDev

                      Bassam Abdul-Baki wrote:

                      A hexadecimal representation of pi was discovered a while back, but no decimal representation is possible

                      Huh? Then what is 3.14159...

                      [Managing Your JavaScript Library in ASP.NET]

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                      Bassam Abdul Baki
                      wrote on last edited by
                      #13

                      An approximation. In decimal, a few billion digits have been calculated. In hexadecimal, a representation was found.

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                      • B Bassam Abdul Baki

                        An approximation. In decimal, a few billion digits have been calculated. In hexadecimal, a representation was found.

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                        AspDotNetDev
                        wrote on last edited by
                        #14

                        Link or it didn't happen!

                        [Managing Your JavaScript Library in ASP.NET]

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                        • A AspDotNetDev

                          Link or it didn't happen!

                          [Managing Your JavaScript Library in ASP.NET]

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                          Albert Holguin
                          wrote on last edited by
                          #15

                          You have to wait until he makes a Wikipedia page for it... may take a second or two... :laugh:

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                          • A Albert Holguin

                            You have to wait until he makes a Wikipedia page for it... may take a second or two... :laugh:

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                            AspDotNetDev
                            wrote on last edited by
                            #16

                            If he really wants to make it convincing, he should ask for help from a pro, such as DD.

                            [Managing Your JavaScript Library in ASP.NET]

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                            • B Bassam Abdul Baki

                              For the most part, yes. There are some things that work in some bases, but not in others, even in some complex bases. A hexadecimal representation of pi was discovered a while back, but no decimal representation is possible (I think).

                              Web - BM - RSS - Math - LinkedIn

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                              Luc Pattyn
                              wrote on last edited by
                              #17

                              You probably mean 16/7. It is too bad there is no Nobel prize for Maths. :((

                              Luc Pattyn [My Articles] Nil Volentibus Arduum

                              The quality and detail of your question reflects on the effectiveness of the help you are likely to get.
                              Please use <PRE> tags for code snippets, they improve readability.
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                              • B Bassam Abdul Baki

                                An approximation. In decimal, a few billion digits have been calculated. In hexadecimal, a representation was found.

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                                AspDotNetDev
                                wrote on last edited by
                                #18

                                If you are talking about this, it just allows you to calculate the n-th digit of pi in a variety of number bases, but the number of digits is still infinite. Well, unless your number system is in increments of pi (0π, 1π, 2π...). :rolleyes:

                                [Managing Your JavaScript Library in ASP.NET]

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                                • B Ben Breeg

                                  So there I was, wallowing in the bath when it suddenly occurs to me 'would maths work the same if we used a different base.' What I mean is, lets say instead of the 10 fingers that we have and on which our decimal counting system is based we had say 14 fingers so we would be counting in base 14 as the norm. Would things like Pythagoras theorem, the Fibonacci sequence, Pi, prime numbers, calculus, square roots, sins, cosines and tangents work? Not being a mathematician, I can't get my head round whether these would work or not. Intuition tells me it would. Would this work in base 14? http://news.bbc.co.uk/1/hi/sci/tech/2911945.stm[^] Does Riemann's hypothesis work in any base? What do the great and good think?

                                  I am the Breeg, goo goo g'joob Aici zace un om despre care nu sestie prea mult

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                                  Amar Chaudhary
                                  wrote on last edited by
                                  #19

                                  It would have evolved that way - they didn't have borrowed characters form alphabets. And its not about conversion from based 10 to base x, everything would have been developed according to base x, so there is a probability that they would have figured out something similar but can't be said exactly....

                                  My Startup!!!!
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                                  • G Gregory Gadow

                                    Yes and no. With sequences of whole numbers, base does not matter. However, some properties of a sequence, such as the "shallow diagonal" property of the Fibonacci sequence, take on different characteristics in different bases. Geometric values, such as pi, phi and e, will be eqivalent regardless of base: given any circle, the ratio of its circumference and its diameter will equal pi regardless of what base you are using. The most notable problem when using different bases is the representation of a fractional part. For example, the ratio of 1/10 in base-10 evaluates to a rational number, 0.1. The eqivalent in base-2, 1/1010, evaluates to an irrational number, 0.000110011.... There is a whole branch of mathematics that looks at translation between bases, although I cannot remember what that field is.

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                                    Sean Cundiff
                                    wrote on last edited by
                                    #20

                                    Gregory.Gadow wrote:

                                    The most notable problem when using different bases is the representation of a fractional part. For example, the ratio of 1/10 in base-10 evaluates to a rational number, 0.1. The eqivalent in base-2, 1/1010, evaluates to an irrational number, 0.000110011....

                                    Actually, the base of a number has nothing to do with whether it's rational or irrational. Your example of 1/10 in base-2 is still rational as a rational number is a number that can be represented by: P/Q Where P and Q are integers. In base-10 your example is 1/10. In base-2 your example is 1/1010. Both are the ratio of two integers and thus are rational. Don't confuse a decimal fraction that is infinitely long as irrational. 1/3 is a rational number yet its decimal representation is 0.3333333... If the decimal fraction is finite length the number is rational. If the decimal fraction is infinite length but repeating the number is rational. If the decimal fraction is infinite length and non-repeating the number is irrational.

                                    -Sean ---- Fire Nuts

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                                    • L Luc Pattyn

                                      You probably mean 16/7. It is too bad there is no Nobel prize for Maths. :((

                                      Luc Pattyn [My Articles] Nil Volentibus Arduum

                                      The quality and detail of your question reflects on the effectiveness of the help you are likely to get.
                                      Please use <PRE> tags for code snippets, they improve readability.
                                      CP Vanity has been updated to V2.3

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                                      AspDotNetDev
                                      wrote on last edited by
                                      #21

                                      Luc Pattyn wrote:

                                      You probably mean 16/7.

                                      :confused:

                                      [Managing Your JavaScript Library in ASP.NET]

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                                      • A AspDotNetDev

                                        Luc Pattyn wrote:

                                        You probably mean 16/7.

                                        :confused:

                                        [Managing Your JavaScript Library in ASP.NET]

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                                        Luc Pattyn
                                        wrote on last edited by
                                        #22

                                        He wanted a hex formula! :)

                                        Luc Pattyn [My Articles] Nil Volentibus Arduum

                                        The quality and detail of your question reflects on the effectiveness of the help you are likely to get.
                                        Please use <PRE> tags for code snippets, they improve readability.
                                        CP Vanity has been updated to V2.3

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                                        • S Sean Cundiff

                                          Gregory.Gadow wrote:

                                          The most notable problem when using different bases is the representation of a fractional part. For example, the ratio of 1/10 in base-10 evaluates to a rational number, 0.1. The eqivalent in base-2, 1/1010, evaluates to an irrational number, 0.000110011....

                                          Actually, the base of a number has nothing to do with whether it's rational or irrational. Your example of 1/10 in base-2 is still rational as a rational number is a number that can be represented by: P/Q Where P and Q are integers. In base-10 your example is 1/10. In base-2 your example is 1/1010. Both are the ratio of two integers and thus are rational. Don't confuse a decimal fraction that is infinitely long as irrational. 1/3 is a rational number yet its decimal representation is 0.3333333... If the decimal fraction is finite length the number is rational. If the decimal fraction is infinite length but repeating the number is rational. If the decimal fraction is infinite length and non-repeating the number is irrational.

                                          -Sean ---- Fire Nuts

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                                          Gregory Gadow
                                          wrote on last edited by
                                          #23

                                          D'oh! That's embarassing. Yes, I meant to say "finite" for base-10 and "infinite" for base-2. As a former math major, I should have known better.

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