What does “x = 1 default” actually mean?

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For context, I am a programmer, not a mathematician, so please forgive my math-ignorance.



I am implementing this calculation in an application that I am working on, but at the bottom of the page, I came across something I have not seen before.



Towards the end of the equation in points (26, 27 & 28) 3 items are individually defined as equaling 1 default. Is there any special meaning here? or can I just set their value to be 1?



Thanks!










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    The "syntax" depends on the programming language used, but - in general - default : "refers to the preexisting value of a user-configurable setting that is assigned to a software application, computer program or device."
    – Mauro ALLEGRANZA
    Sep 5 at 9:52










  • I think the meaning of "default" is that $K_L, K_C, K_H$ usually take the value $1$, but may be given values other than $1$ if a slightly different model for $Delta E$ is required. If you are implementing the $Delta E$ calculation as a function you could make $K_L, K_C, K_H$ optional parameters which all default to a value of $1$ unless the user specifies some other value.
    – gandalf61
    Sep 5 at 10:05















up vote
0
down vote

favorite












For context, I am a programmer, not a mathematician, so please forgive my math-ignorance.



I am implementing this calculation in an application that I am working on, but at the bottom of the page, I came across something I have not seen before.



Towards the end of the equation in points (26, 27 & 28) 3 items are individually defined as equaling 1 default. Is there any special meaning here? or can I just set their value to be 1?



Thanks!










share|cite|improve this question



















  • 1




    The "syntax" depends on the programming language used, but - in general - default : "refers to the preexisting value of a user-configurable setting that is assigned to a software application, computer program or device."
    – Mauro ALLEGRANZA
    Sep 5 at 9:52










  • I think the meaning of "default" is that $K_L, K_C, K_H$ usually take the value $1$, but may be given values other than $1$ if a slightly different model for $Delta E$ is required. If you are implementing the $Delta E$ calculation as a function you could make $K_L, K_C, K_H$ optional parameters which all default to a value of $1$ unless the user specifies some other value.
    – gandalf61
    Sep 5 at 10:05













up vote
0
down vote

favorite









up vote
0
down vote

favorite











For context, I am a programmer, not a mathematician, so please forgive my math-ignorance.



I am implementing this calculation in an application that I am working on, but at the bottom of the page, I came across something I have not seen before.



Towards the end of the equation in points (26, 27 & 28) 3 items are individually defined as equaling 1 default. Is there any special meaning here? or can I just set their value to be 1?



Thanks!










share|cite|improve this question















For context, I am a programmer, not a mathematician, so please forgive my math-ignorance.



I am implementing this calculation in an application that I am working on, but at the bottom of the page, I came across something I have not seen before.



Towards the end of the equation in points (26, 27 & 28) 3 items are individually defined as equaling 1 default. Is there any special meaning here? or can I just set their value to be 1?



Thanks!







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edited Sep 5 at 11:16









Bernard

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asked Sep 5 at 9:46









user1718699

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  • 1




    The "syntax" depends on the programming language used, but - in general - default : "refers to the preexisting value of a user-configurable setting that is assigned to a software application, computer program or device."
    – Mauro ALLEGRANZA
    Sep 5 at 9:52










  • I think the meaning of "default" is that $K_L, K_C, K_H$ usually take the value $1$, but may be given values other than $1$ if a slightly different model for $Delta E$ is required. If you are implementing the $Delta E$ calculation as a function you could make $K_L, K_C, K_H$ optional parameters which all default to a value of $1$ unless the user specifies some other value.
    – gandalf61
    Sep 5 at 10:05













  • 1




    The "syntax" depends on the programming language used, but - in general - default : "refers to the preexisting value of a user-configurable setting that is assigned to a software application, computer program or device."
    – Mauro ALLEGRANZA
    Sep 5 at 9:52










  • I think the meaning of "default" is that $K_L, K_C, K_H$ usually take the value $1$, but may be given values other than $1$ if a slightly different model for $Delta E$ is required. If you are implementing the $Delta E$ calculation as a function you could make $K_L, K_C, K_H$ optional parameters which all default to a value of $1$ unless the user specifies some other value.
    – gandalf61
    Sep 5 at 10:05








1




1




The "syntax" depends on the programming language used, but - in general - default : "refers to the preexisting value of a user-configurable setting that is assigned to a software application, computer program or device."
– Mauro ALLEGRANZA
Sep 5 at 9:52




The "syntax" depends on the programming language used, but - in general - default : "refers to the preexisting value of a user-configurable setting that is assigned to a software application, computer program or device."
– Mauro ALLEGRANZA
Sep 5 at 9:52












I think the meaning of "default" is that $K_L, K_C, K_H$ usually take the value $1$, but may be given values other than $1$ if a slightly different model for $Delta E$ is required. If you are implementing the $Delta E$ calculation as a function you could make $K_L, K_C, K_H$ optional parameters which all default to a value of $1$ unless the user specifies some other value.
– gandalf61
Sep 5 at 10:05





I think the meaning of "default" is that $K_L, K_C, K_H$ usually take the value $1$, but may be given values other than $1$ if a slightly different model for $Delta E$ is required. If you are implementing the $Delta E$ calculation as a function you could make $K_L, K_C, K_H$ optional parameters which all default to a value of $1$ unless the user specifies some other value.
– gandalf61
Sep 5 at 10:05











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Thanks,



I took a peek at the javascript implementation for the calculator on the same site.



it turns out to be just as straight forward as it looks:



var kL = 1.0;
var kC = 1.0;
var kH = 1.0;





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    1 Answer
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    up vote
    1
    down vote













    Thanks,



    I took a peek at the javascript implementation for the calculator on the same site.



    it turns out to be just as straight forward as it looks:



    var kL = 1.0;
    var kC = 1.0;
    var kH = 1.0;





    share|cite|improve this answer
























      up vote
      1
      down vote













      Thanks,



      I took a peek at the javascript implementation for the calculator on the same site.



      it turns out to be just as straight forward as it looks:



      var kL = 1.0;
      var kC = 1.0;
      var kH = 1.0;





      share|cite|improve this answer






















        up vote
        1
        down vote










        up vote
        1
        down vote









        Thanks,



        I took a peek at the javascript implementation for the calculator on the same site.



        it turns out to be just as straight forward as it looks:



        var kL = 1.0;
        var kC = 1.0;
        var kH = 1.0;





        share|cite|improve this answer












        Thanks,



        I took a peek at the javascript implementation for the calculator on the same site.



        it turns out to be just as straight forward as it looks:



        var kL = 1.0;
        var kC = 1.0;
        var kH = 1.0;






        share|cite|improve this answer












        share|cite|improve this answer



        share|cite|improve this answer










        answered Sep 5 at 10:00









        user1718699

        111




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