From trilinear interpolation to linear interpolation.












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I have trouble understanding the following:
Let us assume that we have some $Omega()$ data generating process, which generates {$h,x,y,z$} points. Let us assume that it is possible to construct the functional relationship of the form $h=f(x,y,z)$ by applying trilinear spline interpolation technique.



Now instead of $Omega(h,x,y,z)$ generating process let's take into consideration the following process $Omega(h,x,y^*,z^*)$, where $y^*$ and $z^*$ are scalars. Therefore we can construct $h=f(x)$ function using simple linear spline interpolation (for given values of $y,z$).



My question is the following: If we consider the following function $h=f(x,y^*,z^*)$ obtained from trilinear interpolation, does it coincide with $h=f(x)$ (for fixed $y^*,z^*$) obtained from linear spline interpolation?










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    1












    $begingroup$


    I have trouble understanding the following:
    Let us assume that we have some $Omega()$ data generating process, which generates {$h,x,y,z$} points. Let us assume that it is possible to construct the functional relationship of the form $h=f(x,y,z)$ by applying trilinear spline interpolation technique.



    Now instead of $Omega(h,x,y,z)$ generating process let's take into consideration the following process $Omega(h,x,y^*,z^*)$, where $y^*$ and $z^*$ are scalars. Therefore we can construct $h=f(x)$ function using simple linear spline interpolation (for given values of $y,z$).



    My question is the following: If we consider the following function $h=f(x,y^*,z^*)$ obtained from trilinear interpolation, does it coincide with $h=f(x)$ (for fixed $y^*,z^*$) obtained from linear spline interpolation?










    share|cite|improve this question











    $endgroup$















      1












      1








      1


      1



      $begingroup$


      I have trouble understanding the following:
      Let us assume that we have some $Omega()$ data generating process, which generates {$h,x,y,z$} points. Let us assume that it is possible to construct the functional relationship of the form $h=f(x,y,z)$ by applying trilinear spline interpolation technique.



      Now instead of $Omega(h,x,y,z)$ generating process let's take into consideration the following process $Omega(h,x,y^*,z^*)$, where $y^*$ and $z^*$ are scalars. Therefore we can construct $h=f(x)$ function using simple linear spline interpolation (for given values of $y,z$).



      My question is the following: If we consider the following function $h=f(x,y^*,z^*)$ obtained from trilinear interpolation, does it coincide with $h=f(x)$ (for fixed $y^*,z^*$) obtained from linear spline interpolation?










      share|cite|improve this question











      $endgroup$




      I have trouble understanding the following:
      Let us assume that we have some $Omega()$ data generating process, which generates {$h,x,y,z$} points. Let us assume that it is possible to construct the functional relationship of the form $h=f(x,y,z)$ by applying trilinear spline interpolation technique.



      Now instead of $Omega(h,x,y,z)$ generating process let's take into consideration the following process $Omega(h,x,y^*,z^*)$, where $y^*$ and $z^*$ are scalars. Therefore we can construct $h=f(x)$ function using simple linear spline interpolation (for given values of $y,z$).



      My question is the following: If we consider the following function $h=f(x,y^*,z^*)$ obtained from trilinear interpolation, does it coincide with $h=f(x)$ (for fixed $y^*,z^*$) obtained from linear spline interpolation?







      approximation interpolation






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      share|cite|improve this question













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      share|cite|improve this question








      edited Dec 25 '18 at 12:57







      sane

















      asked Dec 25 '18 at 9:56









      sanesane

      7611




      7611






















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