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Why does cscvn of matlab have 4*2*(n-1) coefficients?

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Ashkan Rigi
Ashkan Rigi el 2 de Nov. de 2021
Editada: Ashkan Rigi el 2 de Nov. de 2021
Hello every body. I use the built in matlab function " cscvn " for periodic splines. It must have 4*(n-1) coefficients but in returns 4*2*(n-1). coefficients (n is the number of x values) ? Does anybody know why? I am looking forwrard to hear your answers.

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yanqi liu
yanqi liu el 2 de Nov. de 2021
p = [0 1 1 0 -1 -1 0 0; 0 0 1 2 1 0 -1 -2];
size(p)
ans = 1×2
2 8
curve = cscvn(p)
curve = struct with fields:
form: 'pp' breaks: [0 1 2 3.1892 4.3784 5.3784 6.5676 7.5676] coefs: [14×4 double] pieces: 7 order: 4 dim: 2

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