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  3. A gentle puzzle I was just asked.

A gentle puzzle I was just asked.

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  • OriginalGriffO OriginalGriff

    What is the smallest positive integer minus the largest negative integer?

    "I have no idea what I did, but I'm taking full credit for it." - ThisOldTony "Common sense is so rare these days, it should be classified as a super power" - Random T-shirt AntiTwitter: @DalekDave is now a follower!

    M Offline
    M Offline
    Member 11561335
    wrote on last edited by
    #27

    Isn't it just 2? I mean the smallest positive int is 1. The largest negative int is -1. (-1 is bigger than -2) so it's just 1 - (-1) which is 2.

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    • OriginalGriffO OriginalGriff

      What is the smallest positive integer minus the largest negative integer?

      "I have no idea what I did, but I'm taking full credit for it." - ThisOldTony "Common sense is so rare these days, it should be classified as a super power" - Random T-shirt AntiTwitter: @DalekDave is now a follower!

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      K Offline
      k5054
      wrote on last edited by
      #28

      The question is ambiguous in terms of what "largest negative" means. In a strict mathematical sense, that number is -1. But in an natural language sense, "largest negative" would mean "most negative". For example, when my bank account hits $-500, I owe a larger amount than when its only $-10!

      "A little song, a little dance, a little seltzer down your pants" Chuckles the clown

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      • OriginalGriffO OriginalGriff

        What is the smallest positive integer minus the largest negative integer?

        "I have no idea what I did, but I'm taking full credit for it." - ThisOldTony "Common sense is so rare these days, it should be classified as a super power" - Random T-shirt AntiTwitter: @DalekDave is now a follower!

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        Marc Clifton
        wrote on last edited by
        #29

        This is why I hated math word problems. To me, the "largest negative integer" is -infinity because, for example, -3 is "larger" than -2 on the "negative" scale. "Largeness" to me is ambiguous. But my brain works in weird ways when it comes to converting words into math expressions.

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        • K k5054

          The question is ambiguous in terms of what "largest negative" means. In a strict mathematical sense, that number is -1. But in an natural language sense, "largest negative" would mean "most negative". For example, when my bank account hits $-500, I owe a larger amount than when its only $-10!

          "A little song, a little dance, a little seltzer down your pants" Chuckles the clown

          OriginalGriffO Offline
          OriginalGriffO Offline
          OriginalGriff
          wrote on last edited by
          #30

          Yes, you owe a larger amount - which means you have a lower bank balance!

          "I have no idea what I did, but I'm taking full credit for it." - ThisOldTony "Common sense is so rare these days, it should be classified as a super power" - Random T-shirt AntiTwitter: @DalekDave is now a follower!

          "I have no idea what I did, but I'm taking full credit for it." - ThisOldTony
          "Common sense is so rare these days, it should be classified as a super power" - Random T-shirt

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          • K k5054

            The question is ambiguous in terms of what "largest negative" means. In a strict mathematical sense, that number is -1. But in an natural language sense, "largest negative" would mean "most negative". For example, when my bank account hits $-500, I owe a larger amount than when its only $-10!

            "A little song, a little dance, a little seltzer down your pants" Chuckles the clown

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            jschell
            wrote on last edited by
            #31

            k5054 wrote:

            question is ambiguous in terms

            I agree. It needs better term definitions to provide a correct answer. But I can see that some of the answers above taking it to mean the question is phrased to taken as a trick question and so rather simple.

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            • OriginalGriffO OriginalGriff

              So which is bigger: -1 or -2?

              "I have no idea what I did, but I'm taking full credit for it." - ThisOldTony "Common sense is so rare these days, it should be classified as a super power" - Random T-shirt AntiTwitter: @DalekDave is now a follower!

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              Rich Leyshon
              wrote on last edited by
              #32

              This was the first question that crossed my mind. According to the interweb, it's the size of the absolute value. Maybe it really depends on what the numbers are representing. On a graph, (-2,-2) is a greater distance from the origin than (-1,-1). I would rather reverse my car into a lamp post at -1mph than -20! Of course, doing it the other way round could be a good way out of a speeding fine. If I state I was clocking my speed in a backwards direction then my forward speed would be negative and the further I went above the speed limit, the smaller my speed would be. "Take him down ..."

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              • K k5054

                The question is ambiguous in terms of what "largest negative" means. In a strict mathematical sense, that number is -1. But in an natural language sense, "largest negative" would mean "most negative". For example, when my bank account hits $-500, I owe a larger amount than when its only $-10!

                "A little song, a little dance, a little seltzer down your pants" Chuckles the clown

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                0x01AA
                wrote on last edited by
                #33

                I think for a programming forum the question is appropriately precise/clearly worded ;) Shame on me, my brain also focused on -Infinity for the largest negative number :-O :laugh:

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                • OriginalGriffO OriginalGriff

                  What is the smallest positive integer minus the largest negative integer?

                  "I have no idea what I did, but I'm taking full credit for it." - ThisOldTony "Common sense is so rare these days, it should be classified as a super power" - Random T-shirt AntiTwitter: @DalekDave is now a follower!

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                  B Offline
                  BobbyStrain
                  wrote on last edited by
                  #34

                  That would be 0.

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                  • B BobbyStrain

                    That would be 0.

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                    0x01AA
                    wrote on last edited by
                    #35

                    This certainly implies correctness in the mathematical sense. The consequence for programmers would then also be: 0 == 0: true 0 > 0 : true 0 < 0 :true

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                    • K k5054

                      The question is ambiguous in terms of what "largest negative" means. In a strict mathematical sense, that number is -1. But in an natural language sense, "largest negative" would mean "most negative". For example, when my bank account hits $-500, I owe a larger amount than when its only $-10!

                      "A little song, a little dance, a little seltzer down your pants" Chuckles the clown

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                      dbrenth
                      wrote on last edited by
                      #36

                      What you OWE is a positive amount. What your bank account is is a negative amount. On the other hand, I keep getting a "bill" from a company for -$.01. I have called and talked to them multiple times, and they keep sending me the bill. Just send me the penny. It would be much cheaper. Brent Hoskisson

                      Brent

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                      • B BobbyStrain

                        That would be 0.

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                        dbrenth
                        wrote on last edited by
                        #37

                        This was my answer as well. Both the smallest positive and largest negative integers are 0. But I can see the case for both 2 and Infinity. Brent Hoskisson

                        Brent

                        OriginalGriffO 1 Reply Last reply
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                        • OriginalGriffO OriginalGriff

                          Oh? Is -2 bigger than -1 now? :-D

                          "I have no idea what I did, but I'm taking full credit for it." - ThisOldTony "Common sense is so rare these days, it should be classified as a super power" - Random T-shirt AntiTwitter: @DalekDave is now a follower!

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                          PIEBALDconsult
                          wrote on last edited by
                          #38

                          "Bigger"? Yes.

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                          • OriginalGriffO OriginalGriff

                            Start with two bit signed numbers and work your way up from there ... :-D That always made me laugh - back in the day when CD players were the Bee's Knees they proudly announced the kit contained a "1 bit DA converter" on the adverts (and the player, normally).

                            "I have no idea what I did, but I'm taking full credit for it." - ThisOldTony "Common sense is so rare these days, it should be classified as a super power" - Random T-shirt AntiTwitter: @DalekDave is now a follower!

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                            PIEBALDconsult
                            wrote on last edited by
                            #39

                            OriginalGriff wrote:

                            when CD players were the Bee's Knees

                            Ooohhh... and 4X oversampling?

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                            • K k5054

                              The question is ambiguous in terms of what "largest negative" means. In a strict mathematical sense, that number is -1. But in an natural language sense, "largest negative" would mean "most negative". For example, when my bank account hits $-500, I owe a larger amount than when its only $-10!

                              "A little song, a little dance, a little seltzer down your pants" Chuckles the clown

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                              PIEBALDconsult
                              wrote on last edited by
                              #40

                              k5054 wrote:

                              The question is ambiguous in terms

                              I agree. It lacks rigor. It ought to use the correct mathematical term -- "GREATER THAN".

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                              • OriginalGriffO OriginalGriff

                                What is the smallest positive integer minus the largest negative integer?

                                "I have no idea what I did, but I'm taking full credit for it." - ThisOldTony "Common sense is so rare these days, it should be classified as a super power" - Random T-shirt AntiTwitter: @DalekDave is now a follower!

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                                PIEBALDconsult
                                wrote on last edited by
                                #41

                                "I reject the premise of the question." -- Leo McGarry

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                                • A Amarnath S

                                  Smallest positive integer = 1 Largest negative integer = -1 Difference is 2.

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                                  raddevus
                                  wrote on last edited by
                                  #42

                                  I agree with you. Here's what chatGPT 3.5 says:

                                  ChatGPT:

                                  There isn't a smallest positive integer or largest negative integer in the mathematical sense, as integers extend infinitely in both positive and negative directions. The set of integers includes all whole numbers, both positive and negative, and extends infinitely in both directions. If you're asking about the difference between the smallest positive integer (1) and the largest negative integer (which doesn't exist), it's not a well-defined mathematical operation. The concept of the "largest negative integer" doesn't have a meaningful value in standard arithmetic. If you have a specific range or context in mind, please provide more details so I can assist you better.

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                                  • M MarkTJohnson

                                    1 - (-1) = 1+1 = 2

                                    I’ve given up trying to be calm. However, I am open to feeling slightly less agitated. I’m begging you for the benefit of everyone, don’t be STUPID.

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                                    raddevus
                                    wrote on last edited by
                                    #43

                                    Yours is the answer I liked best. Look at what chatGPT 3.5 says:

                                    ChatGPT:

                                    There isn't a smallest positive integer or largest negative integer in the mathematical sense, as integers extend infinitely in both positive and negative directions. The set of integers includes all whole numbers, both positive and negative, and extends infinitely in both directions. If you're asking about the difference between the smallest positive integer (1) and the largest negative integer (which doesn't exist), it's not a well-defined mathematical operation. The concept of the "largest negative integer" doesn't have a meaningful value in standard arithmetic. If you have a specific range or context in mind, please provide more details so I can assist you better.

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                                    • R raddevus

                                      Yours is the answer I liked best. Look at what chatGPT 3.5 says:

                                      ChatGPT:

                                      There isn't a smallest positive integer or largest negative integer in the mathematical sense, as integers extend infinitely in both positive and negative directions. The set of integers includes all whole numbers, both positive and negative, and extends infinitely in both directions. If you're asking about the difference between the smallest positive integer (1) and the largest negative integer (which doesn't exist), it's not a well-defined mathematical operation. The concept of the "largest negative integer" doesn't have a meaningful value in standard arithmetic. If you have a specific range or context in mind, please provide more details so I can assist you better.

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                                      MarkTJohnson
                                      wrote on last edited by
                                      #44

                                      The largest negative integer is the negative integer that is greater than all other negative integers. hence -1. Hopefully this isn't devolving into a political conversation.

                                      I’ve given up trying to be calm. However, I am open to feeling slightly less agitated. I’m begging you for the benefit of everyone, don’t be STUPID.

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                                      • M MarkTJohnson

                                        The largest negative integer is the negative integer that is greater than all other negative integers. hence -1. Hopefully this isn't devolving into a political conversation.

                                        I’ve given up trying to be calm. However, I am open to feeling slightly less agitated. I’m begging you for the benefit of everyone, don’t be STUPID.

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                                        raddevus
                                        wrote on last edited by
                                        #45

                                        MarkTJohnson wrote:

                                        The largest negative integer is the negative integer that is greater than all other negative integers.

                                        I thought the same thing. Also, isn't it interesting that on the other side of 0 that no one had a problem distinguishing the smallest positive integer : which is 1. Aren't all numbers greater than others when the are further to the right of other numbers? Also, do these people not believe that following are true? -5000 < -1 -1 > -5000 Then why don't they know that the largest negative integer is -1?

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                                        • L Lost User

                                          Well, considering the largest negative integer tends to infinity…

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                                          raddevus
                                          wrote on last edited by
                                          #46

                                          Which one is true? 1. -Infinity > -1 2. -1 > -Infinity JavaScript says that the first is false and second is true -- see snapshot[^]. Pretty sure that JS has the definitive answer, since it's the Best Programming Language ever! :rolleyes: Sorry, just trolling all programming nerds. :laugh: But seriously, don't you think that is right?

                                          Number.NEGATIVE_INFINITY > -1 // false
                                          Number.NEGATIVE_INFINITY < -1 // true

                                          // a little clearer about my meaning
                                          -1 > Number.NEGATIVE_INFINITY // TRUE

                                          So largest negative integer = -1 :)

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