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Math symbology question

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  • D David Crow

    PIEBALDconsult wrote:

    ...and the kid doesn't seem to know.

    Nor the teacher?

    "One man's wage rise is another man's price increase." - Harold Wilson

    "Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons

    "You can easily judge the character of a man by how he treats those who can do nothing for him." - James D. Miles

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    PIEBALDconsult
    wrote on last edited by
    #9

    He (the kid) was out with a fever for two days.

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    • P PIEBALDconsult

      My kid's algebra homework contains a symbol like an anti-clockwise arrow, sort of the opposite of ↻ (if it'll display). It's mixed in with "rational exponents" and my wife and I have never seen them. We have been unable to figure out what it means and the kid doesn't seem to know. Edit: http://www.codeproject.com/script/Membership/Uploads/2587207/Math.png[^] Any of the younger folk know what it means?

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      Jim Meadors
      wrote on last edited by
      #10

      There should be some explanation at the first point in the book where it is introduced. Or, is there some kind of glossary in the back of the book?

      <sig notetoself="think of a better signature"> <first>Jim</first> <last>Meadors</last> </sig>

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      • J Jim Meadors

        There should be some explanation at the first point in the book where it is introduced. Or, is there some kind of glossary in the back of the book?

        <sig notetoself="think of a better signature"> <first>Jim</first> <last>Meadors</last> </sig>

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        PIEBALDconsult
        wrote on last edited by
        #11

        So I would think, but they weren't issued books. :sigh:

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        • P PIEBALDconsult

          My kid's algebra homework contains a symbol like an anti-clockwise arrow, sort of the opposite of ↻ (if it'll display). It's mixed in with "rational exponents" and my wife and I have never seen them. We have been unable to figure out what it means and the kid doesn't seem to know. Edit: http://www.codeproject.com/script/Membership/Uploads/2587207/Math.png[^] Any of the younger folk know what it means?

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          NeverJustHere
          wrote on last edited by
          #12

          I haven't searched, but you could try looking for it in Latex and seeing if that offers any clues via name/documentation etc.

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          • N NeverJustHere

            I haven't searched, but you could try looking for it in Latex and seeing if that offers any clues via name/documentation etc.

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            PIEBALDconsult
            wrote on last edited by
            #13

            My wife and I both searched. Even Wolfram seemed to just shrug. We wouldn't be surprised to find that it's the wrong symbol. Or some cockamamie new "common core" X| thing.

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            • D David Crow

              PIEBALDconsult wrote:

              ...and the kid doesn't seem to know.

              Nor the teacher?

              "One man's wage rise is another man's price increase." - Harold Wilson

              "Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons

              "You can easily judge the character of a man by how he treats those who can do nothing for him." - James D. Miles

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              Slacker007
              wrote on last edited by
              #14

              DavidCrow wrote:

              Nor the teacher?

              I thought the same thing. Why not go to the teacher first. :doh:

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              • P PIEBALDconsult

                So I would think, but they weren't issued books. :sigh:

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                Jim Meadors
                wrote on last edited by
                #15

                Crazy. That's probably why QA has so many requests to do homework. :confused:

                <sig notetoself="think of a better signature"> <first>Jim</first> <last>Meadors</last> </sig>

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                • P PIEBALDconsult

                  My kid's algebra homework contains a symbol like an anti-clockwise arrow, sort of the opposite of ↻ (if it'll display). It's mixed in with "rational exponents" and my wife and I have never seen them. We have been unable to figure out what it means and the kid doesn't seem to know. Edit: http://www.codeproject.com/script/Membership/Uploads/2587207/Math.png[^] Any of the younger folk know what it means?

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                  Kenneth Haugland
                  wrote on last edited by
                  #16

                  Sure it's not a printing error? A multiplication sign that is messed up? That would make the most sense to me at least.

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                  • P PIEBALDconsult

                    My kid's algebra homework contains a symbol like an anti-clockwise arrow, sort of the opposite of ↻ (if it'll display). It's mixed in with "rational exponents" and my wife and I have never seen them. We have been unable to figure out what it means and the kid doesn't seem to know. Edit: http://www.codeproject.com/script/Membership/Uploads/2587207/Math.png[^] Any of the younger folk know what it means?

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                    Jacquers
                    wrote on last edited by
                    #17

                    Repeat until successful? Here's a list of symbols, but I don't see that one... List of mathematical symbols - Wikipedia, the free encyclopedia[^]

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                    • P PIEBALDconsult

                      My kid's algebra homework contains a symbol like an anti-clockwise arrow, sort of the opposite of ↻ (if it'll display). It's mixed in with "rational exponents" and my wife and I have never seen them. We have been unable to figure out what it means and the kid doesn't seem to know. Edit: http://www.codeproject.com/script/Membership/Uploads/2587207/Math.png[^] Any of the younger folk know what it means?

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                      _Asif_
                      wrote on last edited by
                      #18

                      Have not found it anywhere though have tried even image search, definitely not standard math symbol. Its either printing error or an individual attempt to map a shaky concept into self created image.

                      Do      Read();      Research();      Experiment(); UnTil You Inspire!

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                      • P PIEBALDconsult

                        My kid's algebra homework contains a symbol like an anti-clockwise arrow, sort of the opposite of ↻ (if it'll display). It's mixed in with "rational exponents" and my wife and I have never seen them. We have been unable to figure out what it means and the kid doesn't seem to know. Edit: http://www.codeproject.com/script/Membership/Uploads/2587207/Math.png[^] Any of the younger folk know what it means?

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                        V 0
                        wrote on last edited by
                        #19

                        Never seen it either, but it might be an indication of an iteration of some kind? ask teacher :)

                        V.

                        (MQOTD rules and previous solutions)

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                        • P PIEBALDconsult

                          My kid's algebra homework contains a symbol like an anti-clockwise arrow, sort of the opposite of ↻ (if it'll display). It's mixed in with "rational exponents" and my wife and I have never seen them. We have been unable to figure out what it means and the kid doesn't seem to know. Edit: http://www.codeproject.com/script/Membership/Uploads/2587207/Math.png[^] Any of the younger folk know what it means?

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                          amagitech
                          wrote on last edited by
                          #20

                          I graduated math but I 've never seen this symbol. Maybe it is Operation defined before question.

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                          • P PIEBALDconsult

                            My kid's algebra homework contains a symbol like an anti-clockwise arrow, sort of the opposite of ↻ (if it'll display). It's mixed in with "rational exponents" and my wife and I have never seen them. We have been unable to figure out what it means and the kid doesn't seem to know. Edit: http://www.codeproject.com/script/Membership/Uploads/2587207/Math.png[^] Any of the younger folk know what it means?

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                            Josef Schroettle
                            wrote on last edited by
                            #21

                            The rational exponents can only simplified if the symbol is a division. If you multiply 12/5 * 3/5 you get 36/25 which cannot be simplified. The other way around 12/5 / 3/5 = 4 makes a lot more sense. Same for the other expression.

                            Josef Schroettle

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                            • P PIEBALDconsult

                              My kid's algebra homework contains a symbol like an anti-clockwise arrow, sort of the opposite of ↻ (if it'll display). It's mixed in with "rational exponents" and my wife and I have never seen them. We have been unable to figure out what it means and the kid doesn't seem to know. Edit: http://www.codeproject.com/script/Membership/Uploads/2587207/Math.png[^] Any of the younger folk know what it means?

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                              Rage
                              wrote on last edited by
                              #22

                              This is most likely a Unicode error. I think the "vertically middle dot" was meant to be printed out. Do you have other exercises you could relate to ?

                              Do not escape reality : improve reality !

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                              • P PIEBALDconsult

                                My kid's algebra homework contains a symbol like an anti-clockwise arrow, sort of the opposite of ↻ (if it'll display). It's mixed in with "rational exponents" and my wife and I have never seen them. We have been unable to figure out what it means and the kid doesn't seem to know. Edit: http://www.codeproject.com/script/Membership/Uploads/2587207/Math.png[^] Any of the younger folk know what it means?

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                                Nathan Minier
                                wrote on last edited by
                                #23

                                I think that's the "turn around and ask the smart kid hiding in the back row for the answer" symbol.

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                                • P PIEBALDconsult

                                  My kid's algebra homework contains a symbol like an anti-clockwise arrow, sort of the opposite of ↻ (if it'll display). It's mixed in with "rational exponents" and my wife and I have never seen them. We have been unable to figure out what it means and the kid doesn't seem to know. Edit: http://www.codeproject.com/script/Membership/Uploads/2587207/Math.png[^] Any of the younger folk know what it means?

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                                  dbrenth
                                  wrote on last edited by
                                  #24

                                  If the symbol is a typo for multiplication #13 become c^3, #14 not so clean x^(21/4) You would have to figure out what the symbol is a substitute for.

                                  Brent

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                                  • P PIEBALDconsult

                                    My kid's algebra homework contains a symbol like an anti-clockwise arrow, sort of the opposite of ↻ (if it'll display). It's mixed in with "rational exponents" and my wife and I have never seen them. We have been unable to figure out what it means and the kid doesn't seem to know. Edit: http://www.codeproject.com/script/Membership/Uploads/2587207/Math.png[^] Any of the younger folk know what it means?

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                                    RedDk
                                    wrote on last edited by
                                    #25

                                    Hey! Thirty six days to the first of April! (no?)

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                                    • P PIEBALDconsult

                                      My kid's algebra homework contains a symbol like an anti-clockwise arrow, sort of the opposite of ↻ (if it'll display). It's mixed in with "rational exponents" and my wife and I have never seen them. We have been unable to figure out what it means and the kid doesn't seem to know. Edit: http://www.codeproject.com/script/Membership/Uploads/2587207/Math.png[^] Any of the younger folk know what it means?

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                                      sir_download_alot
                                      wrote on last edited by
                                      #26

                                      This might not help at all but makes you feel less guilty. I work now 20 years in Reinsurance and develop pricing tool, have a degree in Electronics and Economics. My work colleagues, who are by nature, all mathematicians and specialist in the field of actuarial science. Some have PHD's and other degrees I cannot even pronounce. However, I haven't seen this symbol in my entire career, and that's frustrating! Could it mean to find a divisor to get from c^12/5 to c^3/5? Have a look here on Wolfram https://www.wolframalpha.com/input/?i=(c%5E(12%2F5))+%2F+(c%5E(9%2F5))

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                                      • P PIEBALDconsult

                                        So I would think, but they weren't issued books. :sigh:

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                                        Gary Wheeler
                                        wrote on last edited by
                                        #27

                                        A math class. With no books. Western civilization is doomed. With any luck, the teacher will be mounted to the front of the savages' leader's vehicle when they storm the refuge of the survivors...

                                        Software Zen: delete this;

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                                        • P PIEBALDconsult

                                          My kid's algebra homework contains a symbol like an anti-clockwise arrow, sort of the opposite of ↻ (if it'll display). It's mixed in with "rational exponents" and my wife and I have never seen them. We have been unable to figure out what it means and the kid doesn't seem to know. Edit: http://www.codeproject.com/script/Membership/Uploads/2587207/Math.png[^] Any of the younger folk know what it means?

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                                          Member 12279744
                                          wrote on last edited by
                                          #28

                                          I haven't taken a math class in 30 years, but 30 yrs ago, I took a lot of them. Even so, the algebra problems your kid is doing hasn't changed much since the 17th century. Find the earliest reference in the book, or perhaps even inside the cover. I strongly suspect the author has minted his own notation. In context, it looks like you're supposed to replace the squiggly with another standard symbol, such as < etc.

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