Skip to content
  • Categories
  • Recent
  • Tags
  • Popular
  • World
  • Users
  • Groups
Skins
  • Light
  • Cerulean
  • Cosmo
  • Flatly
  • Journal
  • Litera
  • Lumen
  • Lux
  • Materia
  • Minty
  • Morph
  • Pulse
  • Sandstone
  • Simplex
  • Sketchy
  • Spacelab
  • United
  • Yeti
  • Zephyr
  • Dark
  • Cyborg
  • Darkly
  • Quartz
  • Slate
  • Solar
  • Superhero
  • Vapor

  • Default (No Skin)
  • No Skin
Collapse
Code Project
  1. Home
  2. The Lounge
  3. one equal to two ?

one equal to two ?

Scheduled Pinned Locked Moved The Lounge
helpquestion
65 Posts 21 Posters 0 Views 1 Watching
  • Oldest to Newest
  • Newest to Oldest
  • Most Votes
Reply
  • Reply as topic
Log in to reply
This topic has been deleted. Only users with topic management privileges can see it.
  • Kornfeld Eliyahu PeterK Kornfeld Eliyahu Peter

    That you do not think so it will not change the fact that, when you move from this line to the next, you actually divide by zero - (a-a)!!! More! A solution of an equation must be traversal to both direction - yours is not! a=a a²=a² This is a one-way step and is forbidden...

    Skipper: We'll fix it. Alex: Fix it? How you gonna fix this? Skipper: Grit, spit and a whole lotta duct tape.

    T Offline
    T Offline
    tayoufabrice
    wrote on last edited by
    #40

    ok !! :thumbsup: My best answer[^]

    1 Reply Last reply
    0
    • T tayoufabrice

      :laugh: As I know mathematics doesn't approve 0=0 so, the error is a²-a²=a²-a² (meaning 0=0) exactly it is a teacher who showed it to us.

      Kornfeld Eliyahu PeterK Offline
      Kornfeld Eliyahu PeterK Offline
      Kornfeld Eliyahu Peter
      wrote on last edited by
      #41

      It has nothing to do with 0 equal to 0 or not (which is a mathematical game only), but the fact that division by zero is not permitted (or more precisely the outcome is undefined)...

      Skipper: We'll fix it. Alex: Fix it? How you gonna fix this? Skipper: Grit, spit and a whole lotta duct tape.

      "It never ceases to amaze me that a spacecraft launched in 1977 can be fixed remotely from Earth." ― Brian Cox

      P T 2 Replies Last reply
      0
      • Kornfeld Eliyahu PeterK Kornfeld Eliyahu Peter

        It has nothing to do with 0 equal to 0 or not (which is a mathematical game only), but the fact that division by zero is not permitted (or more precisely the outcome is undefined)...

        Skipper: We'll fix it. Alex: Fix it? How you gonna fix this? Skipper: Grit, spit and a whole lotta duct tape.

        P Offline
        P Offline
        PIEBALDconsult
        wrote on last edited by
        #42

        Yes, but the damage is done before that.

        Kornfeld Eliyahu PeterK 1 Reply Last reply
        0
        • Kornfeld Eliyahu PeterK Kornfeld Eliyahu Peter

          It has nothing to do with 0 equal to 0 or not (which is a mathematical game only), but the fact that division by zero is not permitted (or more precisely the outcome is undefined)...

          Skipper: We'll fix it. Alex: Fix it? How you gonna fix this? Skipper: Grit, spit and a whole lotta duct tape.

          T Offline
          T Offline
          tayoufabrice
          wrote on last edited by
          #43

          1=1 a=a <=> a/a=1 a²=a² ?? a=b <=> a/b=1 a²=b² ?? then a=b a-c = b-c ? a-a = a-a (assuming a=b and a=c) ?? Where is the division by zero ? I've added c at both sides of =

          P 1 Reply Last reply
          0
          • T tayoufabrice

            Let read this : 1=1 a=a a²=a² a²-a²=a²-a² a(a-a)=(a+a)(a-a) a=a+a a(1)=a(1+1) 1=1+1 1=2 Where is the error ?

            R Offline
            R Offline
            R Giskard Reventlov
            wrote on last edited by
            #44

            tayoufabrice wrote:

            Where is the error ?

            In between your ears: obviously the answer is 42.

            T 1 Reply Last reply
            0
            • T tayoufabrice

              Let read this : 1=1 a=a a²=a² a²-a²=a²-a² a(a-a)=(a+a)(a-a) a=a+a a(1)=a(1+1) 1=1+1 1=2 Where is the error ?

              P Offline
              P Offline
              phil o
              wrote on last edited by
              #45

              a - a = 0

              You cannot get anything useful from a multiplication once it has involved a zero term.

              5 x 0 = 12012 x 0

              does not mean that

              5 = 12012

              There are two kinds of people in the world: those who can extrapolate from incomplete data.

              T 1 Reply Last reply
              0
              • T tayoufabrice

                1=1 a=a <=> a/a=1 a²=a² ?? a=b <=> a/b=1 a²=b² ?? then a=b a-c = b-c ? a-a = a-a (assuming a=b and a=c) ?? Where is the division by zero ? I've added c at both sides of =

                P Offline
                P Offline
                PIEBALDconsult
                wrote on last edited by
                #46

                At the final step, you effectively have a=0, which means that a/a=1 on the second line is division by zero. But why were b and c introduced? It's just nonsense. Additionally, a²=b² certainly does not mean a=b.

                T 1 Reply Last reply
                0
                • T tayoufabrice

                  Let read this : 1=1 a=a a²=a² a²-a²=a²-a² a(a-a)=(a+a)(a-a) a=a+a a(1)=a(1+1) 1=1+1 1=2 Where is the error ?

                  P Offline
                  P Offline
                  pt1401
                  wrote on last edited by
                  #47

                  The error is simultaneously in line 5, your misunderstanding of basic maths, and your posting of this question.

                  1 Reply Last reply
                  0
                  • T tayoufabrice

                    Let read this : 1=1 a=a a²=a² a²-a²=a²-a² a(a-a)=(a+a)(a-a) a=a+a a(1)=a(1+1) 1=1+1 1=2 Where is the error ?

                    Mike HankeyM Offline
                    Mike HankeyM Offline
                    Mike Hankey
                    wrote on last edited by
                    #48

                    The error is I haven't had coffee yet.

                    New version: WinHeist Version 2.1.0 There's a fine line between crazy and free spirited and it's usually a prescription. I'm currently unsupervised, I know it freaks me out too but the possibilities are endless.

                    1 Reply Last reply
                    0
                    • P PIEBALDconsult

                      At the final step, you effectively have a=0, which means that a/a=1 on the second line is division by zero. But why were b and c introduced? It's just nonsense. Additionally, a²=b² certainly does not mean a=b.

                      T Offline
                      T Offline
                      tayoufabrice
                      wrote on last edited by
                      #49

                      a=0 never means a/a=0 (a can never be 0). a=a <=> a/a=a/a <=> 1=1 I could fix the post as : Given a C ]--;0[ U ]0;++[ (meaning 0 excluded)

                      Kornfeld Eliyahu PeterK 1 Reply Last reply
                      0
                      • P phil o

                        a - a = 0

                        You cannot get anything useful from a multiplication once it has involved a zero term.

                        5 x 0 = 12012 x 0

                        does not mean that

                        5 = 12012

                        There are two kinds of people in the world: those who can extrapolate from incomplete data.

                        T Offline
                        T Offline
                        tayoufabrice
                        wrote on last edited by
                        #50

                        very very TRUE:thumbsup::thumbsup:

                        1 Reply Last reply
                        0
                        • R R Giskard Reventlov

                          tayoufabrice wrote:

                          Where is the error ?

                          In between your ears: obviously the answer is 42.

                          T Offline
                          T Offline
                          tayoufabrice
                          wrote on last edited by
                          #51

                          the answer is 42 :laugh: :laugh:

                          1 Reply Last reply
                          0
                          • T tayoufabrice

                            a=0 never means a/a=0 (a can never be 0). a=a <=> a/a=a/a <=> 1=1 I could fix the post as : Given a C ]--;0[ U ]0;++[ (meaning 0 excluded)

                            Kornfeld Eliyahu PeterK Offline
                            Kornfeld Eliyahu PeterK Offline
                            Kornfeld Eliyahu Peter
                            wrote on last edited by
                            #52

                            Which means that you have an equation system and not a single equation...It's a different thing to solve...

                            Skipper: We'll fix it. Alex: Fix it? How you gonna fix this? Skipper: Grit, spit and a whole lotta duct tape.

                            "It never ceases to amaze me that a spacecraft launched in 1977 can be fixed remotely from Earth." ― Brian Cox

                            1 Reply Last reply
                            0
                            • P PIEBALDconsult

                              Yes, but the damage is done before that.

                              Kornfeld Eliyahu PeterK Offline
                              Kornfeld Eliyahu PeterK Offline
                              Kornfeld Eliyahu Peter
                              wrote on last edited by
                              #53

                              You mean, when OP went to learn math?

                              Skipper: We'll fix it. Alex: Fix it? How you gonna fix this? Skipper: Grit, spit and a whole lotta duct tape.

                              "It never ceases to amaze me that a spacecraft launched in 1977 can be fixed remotely from Earth." ― Brian Cox

                              1 Reply Last reply
                              0
                              • T tayoufabrice

                                Let read this : 1=1 a=a a²=a² a²-a²=a²-a² a(a-a)=(a+a)(a-a) a=a+a a(1)=a(1+1) 1=1+1 1=2 Where is the error ?

                                R Offline
                                R Offline
                                RedDk
                                wrote on last edited by
                                #54

                                This is best asked here: http://www.codeproject.com/script/Answers/List.aspx?tags=900&alltags=true[^]

                                1 Reply Last reply
                                0
                                • P PIEBALDconsult

                                  Abbott and Costello said it better.

                                  M Offline
                                  M Offline
                                  Mark_Wallace
                                  wrote on last edited by
                                  #55

                                  PIEBALDconsult wrote:

                                  Abbott and Costello_, who were on first,_ said it better.

                                  It was missing something.

                                  I wanna be a eunuchs developer! Pass me a bread knife!

                                  1 Reply Last reply
                                  0
                                  • T tayoufabrice

                                    Let read this : 1=1 a=a a²=a² a²-a²=a²-a² a(a-a)=(a+a)(a-a) a=a+a a(1)=a(1+1) 1=1+1 1=2 Where is the error ?

                                    L Offline
                                    L Offline
                                    Lost User
                                    wrote on last edited by
                                    #56

                                    welcome to the lounge. I know this isn't quite your first post - but nearly. And I would like to apologise for the negativity your post received. For someone who hadn't seen that 'proof' before it may have been interesting - as you can see, not only have the majority here seen it (more than once!) but they like to stuff it down your throat - whether to big-note themselves or simply in an attempt to belittle you we cannot tell. They should be ashamed. Merry Xmas

                                    PooperPig - Coming Soon

                                    T 1 Reply Last reply
                                    0
                                    • T tayoufabrice

                                      Let read this : 1=1 a=a a²=a² a²-a²=a²-a² a(a-a)=(a+a)(a-a) a=a+a a(1)=a(1+1) 1=1+1 1=2 Where is the error ?

                                      M Offline
                                      M Offline
                                      Mitchell J
                                      wrote on last edited by
                                      #57

                                      How about this... ;P Start with this: 1/9 = 1/9 Then convert one side to decimal equivalent (which is infinitely recurring) 1/9 = 0.11111111111111111111111111111111111111111111111111111111...(etc etc) Then multiply both sides by nine 1 = 0.9999999999999999999999999999999999999999999999999999999999...(etc etc) Therefore, 1 is equal to 0.9999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999...(where the 9's are in infinite recursion). And yes, this actually is mathematically correct.

                                      T 1 Reply Last reply
                                      0
                                      • L Lost User

                                        welcome to the lounge. I know this isn't quite your first post - but nearly. And I would like to apologise for the negativity your post received. For someone who hadn't seen that 'proof' before it may have been interesting - as you can see, not only have the majority here seen it (more than once!) but they like to stuff it down your throat - whether to big-note themselves or simply in an attempt to belittle you we cannot tell. They should be ashamed. Merry Xmas

                                        PooperPig - Coming Soon

                                        T Offline
                                        T Offline
                                        tayoufabrice
                                        wrote on last edited by
                                        #58

                                        Thank you Max and happy new Xear

                                        1 Reply Last reply
                                        0
                                        • M Mitchell J

                                          How about this... ;P Start with this: 1/9 = 1/9 Then convert one side to decimal equivalent (which is infinitely recurring) 1/9 = 0.11111111111111111111111111111111111111111111111111111111...(etc etc) Then multiply both sides by nine 1 = 0.9999999999999999999999999999999999999999999999999999999999...(etc etc) Therefore, 1 is equal to 0.9999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999...(where the 9's are in infinite recursion). And yes, this actually is mathematically correct.

                                          T Offline
                                          T Offline
                                          tayoufabrice
                                          wrote on last edited by
                                          #59

                                          I agree but here 1/9 = 0.111111111111111111111111...... is not really true ; we lost 0.000000000000000000000.......9 I could write 1/9~= 0.111111111111111111111111...... then 1 ~= 0.9999999999999999999999999...... ??

                                          M 1 Reply Last reply
                                          0
                                          Reply
                                          • Reply as topic
                                          Log in to reply
                                          • Oldest to Newest
                                          • Newest to Oldest
                                          • Most Votes


                                          • Login

                                          • Don't have an account? Register

                                          • Login or register to search.
                                          • First post
                                            Last post
                                          0
                                          • Categories
                                          • Recent
                                          • Tags
                                          • Popular
                                          • World
                                          • Users
                                          • Groups