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Spline interpolation  Very Beginer need help http://forum.alglib.net/viewtopic.php?f=2&t=2328 
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Author:  SannaK [ Thu May 07, 2015 9:42 am ] 
Post subject:  Spline interpolation  Very Beginer need help 
Hello, I'm delphi developer and i would like to use interpolation for join many points. I have a list of points in 2D Space : likeness "TList<PointF(X, Y)>" So i wanted to use the function "Spline2DBuildBilinear" but i don't really understand how to use it. Quote: Input parameters: X  spline abscissas, array[0..N1] Y  spline ordinates, array[0..M1] F  function values, array[0..M1,0..N1] M,N  grid size, M>=2, N>=2 Output parameters: C  spline interpolant So if i have 3 points { A(0,0); B(100,100); C(50,200) } X contains [0, 100, 200] (?) Y contains [0, 100, 50] (?) What i should put for F ? Same question about M and N. I guess it's something like M := 400 and N := 400 ? Maths are so far for me, it's why i need your help. Ask me if you didn't understand something in my message. Thanks, Sanna 
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