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Being bad at math

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  • E Ennis Ray Lynch Jr

    Zero based indexes seem to be kicking programmer's A**es even today. I am recently using a software package that allows row styles to be applied for even and odd rows. If you apply an even style the 1st, 3rd, 5th, ... row receives the style instead of the correct row 2, 4, 6 etc. It would seem to me that the programmer that designed the underlying code used the index of a zero based index to determine if the row was even or odd. So let me pose this question: Do you think the first row should be considered even or odd?

    Need custom software developed? I do C# development and consulting all over the United States. A man said to the universe: "Sir I exist!" "However," replied the universe, "The fact has not created in me A sense of obligation." --Stephen Crane

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    Dan Neely
    wrote on last edited by
    #21

    Userland options should be written to reflect userland expectations. The first row is 1. If the setting is something that can only be changed by editing the registry key HKLM\oh\my\god\worse\than\failure\all\is\not\dead\that\eternal\lies\row_style using zero for the first row isn't an issue in and of itself. You've got other far more serious problems anyway. :rolleyes:

    It is a truth universally acknowledged that a zombie in possession of brains must be in want of more brains. -- Pride and Prejudice and Zombies

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    • H Henry Minute

      1 is odd. 0, 2, 4, 6 ... eleventyfour are even.

      Henry Minute Do not read medical books! You could die of a misprint. - Mark Twain Girl: (staring) "Why do you need an icy cucumber?" “I want to report a fraud. The government is lying to us all.”

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      Tim Carmichael
      wrote on last edited by
      #22

      My daughter has a DVD that is a pseudo-telling of 'The Lord of the Rings' called 'Lord of the Beans'. Bilbo's equivalent is celebrating his 'twelvetytwoth' birthday. So, in Middle Earth, eleventyfour is perfectly reasonable. But, more to the point, while the indices may start at 0 internally, visually, the first row displayed should be considered odd. Tim

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      • P PIEBALDconsult

        Which odd rows? The displayed odd rows? That would be wrong. Or the rows which internally have odd indices, but which are displayed as even rows? That should be correct. I would think of it as the grid/list/whatever could have a line number (displayed at the left). The line numbers would be one-based. Which lines are getting the even-style?

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        Ennis Ray Lynch Jr
        wrote on last edited by
        #23

        If I set the even style then the first, third, fifth, etc rows are being styled based on my settings. Which in my opinion is incredibly retarded. It should have been obvious that the item at index zero is the first item. I am starting to believe that modern programmers may not even know why arrays start at 0 anymore. (Ironically it was to make the math easier).

        Need custom software developed? I do C# development and consulting all over the United States. A man said to the universe: "Sir I exist!" "However," replied the universe, "The fact has not created in me A sense of obligation." --Stephen Crane

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        • T Tim Carmichael

          My daughter has a DVD that is a pseudo-telling of 'The Lord of the Rings' called 'Lord of the Beans'. Bilbo's equivalent is celebrating his 'twelvetytwoth' birthday. So, in Middle Earth, eleventyfour is perfectly reasonable. But, more to the point, while the indices may start at 0 internally, visually, the first row displayed should be considered odd. Tim

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          Henry Minute
          wrote on last edited by
          #24

          Visually the first row should be considered odd, but mathematically 0 is the first positive even number, so if the first row shown is the zeroeth one it is both odd, as the first row, and even because it it is the zeroeth index. This anomaly is likely to cause a rift in the space-time continuum resulting in a Divide by Something or Other Exception.

          Henry Minute Do not read medical books! You could die of a misprint. - Mark Twain Girl: (staring) "Why do you need an icy cucumber?" “I want to report a fraud. The government is lying to us all.”

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          • E Ennis Ray Lynch Jr

            Zero based indexes seem to be kicking programmer's A**es even today. I am recently using a software package that allows row styles to be applied for even and odd rows. If you apply an even style the 1st, 3rd, 5th, ... row receives the style instead of the correct row 2, 4, 6 etc. It would seem to me that the programmer that designed the underlying code used the index of a zero based index to determine if the row was even or odd. So let me pose this question: Do you think the first row should be considered even or odd?

            Need custom software developed? I do C# development and consulting all over the United States. A man said to the universe: "Sir I exist!" "However," replied the universe, "The fact has not created in me A sense of obligation." --Stephen Crane

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            Single Step Debugger
            wrote on last edited by
            #25

            If we consider the binary number representation it is SO obvious that the zero row is even. The fastest way to check if some number is odd or even is:

            bool IsOdd = (RowNumber & 1);

            Hence, because zero is 0x00000000 and two is 0x00000010 the both are odd numbers.

            The narrow specialist in the broad sense of the word is a complete idiot in the narrow sense of the word. Advertise here – minimum three posts per day are guaranteed.

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            • E Ennis Ray Lynch Jr

              If I set the even style then the first, third, fifth, etc rows are being styled based on my settings. Which in my opinion is incredibly retarded. It should have been obvious that the item at index zero is the first item. I am starting to believe that modern programmers may not even know why arrays start at 0 anymore. (Ironically it was to make the math easier).

              Need custom software developed? I do C# development and consulting all over the United States. A man said to the universe: "Sir I exist!" "However," replied the universe, "The fact has not created in me A sense of obligation." --Stephen Crane

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              PIEBALDconsult
              wrote on last edited by
              #26

              You're right; send them a scathing bug report.

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              • H Henry Minute

                Visually the first row should be considered odd, but mathematically 0 is the first positive even number, so if the first row shown is the zeroeth one it is both odd, as the first row, and even because it it is the zeroeth index. This anomaly is likely to cause a rift in the space-time continuum resulting in a Divide by Something or Other Exception.

                Henry Minute Do not read medical books! You could die of a misprint. - Mark Twain Girl: (staring) "Why do you need an icy cucumber?" “I want to report a fraud. The government is lying to us all.”

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                Anthony Mushrow
                wrote on last edited by
                #27

                Henry Minute wrote:

                but mathematically 0 is the first positive even number

                But you can have negative zero as well!

                My current favourite word is: Delicious!

                -SK Genius

                Game Programming articles start -here[^]-

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                • E Ennis Ray Lynch Jr

                  Zero based indexes seem to be kicking programmer's A**es even today. I am recently using a software package that allows row styles to be applied for even and odd rows. If you apply an even style the 1st, 3rd, 5th, ... row receives the style instead of the correct row 2, 4, 6 etc. It would seem to me that the programmer that designed the underlying code used the index of a zero based index to determine if the row was even or odd. So let me pose this question: Do you think the first row should be considered even or odd?

                  Need custom software developed? I do C# development and consulting all over the United States. A man said to the universe: "Sir I exist!" "However," replied the universe, "The fact has not created in me A sense of obligation." --Stephen Crane

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                  Michael Bergman
                  wrote on last edited by
                  #28

                  That's not a math question, it's a UI question. The first row should be determined from the standpoint of the user, so it should be odd, regardless of how it is implemented under the hood. Do you care that Intel handles integers in little endian format while Motorola handles them in big endian format? Not as long as you get the right answer in the end(ian).

                  m.bergman

                  -- For Bruce Schneier, quanta only have one state : afraid.

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                  • E Ennis Ray Lynch Jr

                    Zero based indexes seem to be kicking programmer's A**es even today. I am recently using a software package that allows row styles to be applied for even and odd rows. If you apply an even style the 1st, 3rd, 5th, ... row receives the style instead of the correct row 2, 4, 6 etc. It would seem to me that the programmer that designed the underlying code used the index of a zero based index to determine if the row was even or odd. So let me pose this question: Do you think the first row should be considered even or odd?

                    Need custom software developed? I do C# development and consulting all over the United States. A man said to the universe: "Sir I exist!" "However," replied the universe, "The fact has not created in me A sense of obligation." --Stephen Crane

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                    Lost User
                    wrote on last edited by
                    #29

                    What do you mean by first? rows[1] (which is the 1-st row) or rows[0] (there are no rows before this)? I think row[0] should be even, and row[1] odd, because that would fit with the usual modulo math. But I think you should call the row rows[0] the zeroth row, because "first" is ambiguous.

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                    • L Lost User

                      What do you mean by first? rows[1] (which is the 1-st row) or rows[0] (there are no rows before this)? I think row[0] should be even, and row[1] odd, because that would fit with the usual modulo math. But I think you should call the row rows[0] the zeroth row, because "first" is ambiguous.

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                      Ennis Ray Lynch Jr
                      wrote on last edited by
                      #30

                      Saying the first element in an array is an unambiguous statement. "On two occasions I have been asked, 'Pray, Mr. Babbage, if you put into the machine wrong figures, will the right answers come out?' I am not able rightly to apprehend the kind of confusion of ideas that could provoke such a question." --Charles Babbage

                      Need custom software developed? I do C# development and consulting all over the United States. A man said to the universe: "Sir I exist!" "However," replied the universe, "The fact has not created in me A sense of obligation." --Stephen Crane

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                      • E Ennis Ray Lynch Jr

                        Saying the first element in an array is an unambiguous statement. "On two occasions I have been asked, 'Pray, Mr. Babbage, if you put into the machine wrong figures, will the right answers come out?' I am not able rightly to apprehend the kind of confusion of ideas that could provoke such a question." --Charles Babbage

                        Need custom software developed? I do C# development and consulting all over the United States. A man said to the universe: "Sir I exist!" "However," replied the universe, "The fact has not created in me A sense of obligation." --Stephen Crane

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                        Lost User
                        wrote on last edited by
                        #31

                        Not to me, or to many other people either. How can I know you didn't mean the element with number 1?

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                        • M Mustafa Ismail Mustafa

                          Henry Minute wrote:

                          eleventyfour

                          I'd love to know how to render that in digits! :-D

                          If the post was helpful, please vote! Current activities: Book: The Gods Themselves by Isaac Asimov Project: Hospital Automation, final stage Learning: Image analysis, LINQ Now and forever, defiant to the end. What is Multiple Sclerosis[^]?

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                          Dan Neely
                          wrote on last edited by
                          #32

                          Mustafa Ismail Mustafa wrote:

                          Henry Minute wrote: eleventyfour I'd love to know how to render that in digits! Big Grin

                          0xB4 :cool:

                          It is a truth universally acknowledged that a zombie in possession of brains must be in want of more brains. -- Pride and Prejudice and Zombies

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                          • E Ennis Ray Lynch Jr

                            Zero based indexes seem to be kicking programmer's A**es even today. I am recently using a software package that allows row styles to be applied for even and odd rows. If you apply an even style the 1st, 3rd, 5th, ... row receives the style instead of the correct row 2, 4, 6 etc. It would seem to me that the programmer that designed the underlying code used the index of a zero based index to determine if the row was even or odd. So let me pose this question: Do you think the first row should be considered even or odd?

                            Need custom software developed? I do C# development and consulting all over the United States. A man said to the universe: "Sir I exist!" "However," replied the universe, "The fact has not created in me A sense of obligation." --Stephen Crane

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                            David Crow
                            wrote on last edited by
                            #33

                            How do you know there is a first row? ;)

                            "Old age is like a bank account. You withdraw later in life what you have deposited along the way." - Unknown

                            "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

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                            • M Mustafa Ismail Mustafa

                              I understand that I'm hamster like in my behavior, but really, telling me that I'm fat by comparing a hamster to a guinea pig...? :(

                              If the post was helpful, please vote! Current activities: Book: The Gods Themselves by Isaac Asimov Project: Hospital Automation, final stage Learning: Image analysis, LINQ Now and forever, defiant to the end. What is Multiple Sclerosis[^]?

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                              Steve McLenithan
                              wrote on last edited by
                              #34

                              Mustafa Ismail Mustafa wrote:

                              I understand that I'm hamster like in my behavior, but really, telling me that I'm fat by comparing a hamster to a guinea pig...?Frown

                              :laugh: :laugh: :laugh: :laugh: :laugh:

                              // Steve McLenithan

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                              • E Ennis Ray Lynch Jr

                                Zero based indexes seem to be kicking programmer's A**es even today. I am recently using a software package that allows row styles to be applied for even and odd rows. If you apply an even style the 1st, 3rd, 5th, ... row receives the style instead of the correct row 2, 4, 6 etc. It would seem to me that the programmer that designed the underlying code used the index of a zero based index to determine if the row was even or odd. So let me pose this question: Do you think the first row should be considered even or odd?

                                Need custom software developed? I do C# development and consulting all over the United States. A man said to the universe: "Sir I exist!" "However," replied the universe, "The fact has not created in me A sense of obligation." --Stephen Crane

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                                Phil Martin
                                wrote on last edited by
                                #35

                                First row is definitely odd. 0 based indexes should rarely make it to end-user land.

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                                • E Ennis Ray Lynch Jr

                                  Saying the first element in an array is an unambiguous statement. "On two occasions I have been asked, 'Pray, Mr. Babbage, if you put into the machine wrong figures, will the right answers come out?' I am not able rightly to apprehend the kind of confusion of ideas that could provoke such a question." --Charles Babbage

                                  Need custom software developed? I do C# development and consulting all over the United States. A man said to the universe: "Sir I exist!" "However," replied the universe, "The fact has not created in me A sense of obligation." --Stephen Crane

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                                  PIEBALDconsult
                                  wrote on last edited by
                                  #36

                                  "First" could mean many things in different contexts. As I recall, in Pascal, you can define an array in which the first index is -5 (for example). Which is why I say zeroth and oneth (or negative-fiveth) instead.

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                                  • R Russell Jones

                                    Mathematically the first row should have a style all of its own as Zero can't really be classed as either odd or even. It would make sense to style it as even though so that it had the contrasting style to row 1. Of course if you're going to allow the user a choice of what to do then you may end up asking the user what colour you want for the first third and fifth row etc and then set that to the even row style behind the scenes.

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                                    Naruki 0
                                    wrote on last edited by
                                    #37

                                    "Zero can't really be classed as either odd or even" This, in fact, is incorrect. Zero is even by all the properties of evenness.

                                    Codemonkeys don't do it at all. Too busy coding.

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                                    • P peterchen

                                      Russell Jones wrote:

                                      as Zero can't really be classed as either odd or even

                                      How not? I assume the "official" definition is the modulus 2, or somethign equivalent to it.

                                      Don't attribute to stupidity what can be equally well explained by buerocracy.
                                      My latest article | Linkify!| FoldWithUs! | sighist

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                                      Naruki 0
                                      wrote on last edited by
                                      #38

                                      He's mistaken. Wikipedia has a whole page devoted to the topic, with a concise example here[^].

                                      Codemonkeys don't do it at all. Too busy coding.

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                                      • E Ennis Ray Lynch Jr

                                        Zero based indexes seem to be kicking programmer's A**es even today. I am recently using a software package that allows row styles to be applied for even and odd rows. If you apply an even style the 1st, 3rd, 5th, ... row receives the style instead of the correct row 2, 4, 6 etc. It would seem to me that the programmer that designed the underlying code used the index of a zero based index to determine if the row was even or odd. So let me pose this question: Do you think the first row should be considered even or odd?

                                        Need custom software developed? I do C# development and consulting all over the United States. A man said to the universe: "Sir I exist!" "However," replied the universe, "The fact has not created in me A sense of obligation." --Stephen Crane

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                                        Lost User
                                        wrote on last edited by
                                        #39

                                        Despite being indexed with zero, there really is not a 'zeroth' row. The FIRST row has an index of zero. So, the question is, should the term 'Even Rows' apply to the row or its index? Debate all you want - but I would wager that the majority of implementations, and the majority of technical and non technical people, when presented with a list, would count the first row as one and, therefore, odd. So the implementation you are using is, I'd say, non standard and confusing. Which one is it?

                                        ___________________________________________ .\\axxx (That's an 'M')

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                                        • E Ennis Ray Lynch Jr

                                          Zero based indexes seem to be kicking programmer's A**es even today. I am recently using a software package that allows row styles to be applied for even and odd rows. If you apply an even style the 1st, 3rd, 5th, ... row receives the style instead of the correct row 2, 4, 6 etc. It would seem to me that the programmer that designed the underlying code used the index of a zero based index to determine if the row was even or odd. So let me pose this question: Do you think the first row should be considered even or odd?

                                          Need custom software developed? I do C# development and consulting all over the United States. A man said to the universe: "Sir I exist!" "However," replied the universe, "The fact has not created in me A sense of obligation." --Stephen Crane

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                                          Jorgen Sigvardsson
                                          wrote on last edited by
                                          #40

                                          x % 2 == 0 in general. x % 2 == 1 when dealing with humans. That's my general strategy. I think I have all bases covered!

                                          -- Kein Mitleid Für Die Mehrheit

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