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

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Ashkan Rigi
Ashkan Rigi el 6 de Nov. de 2021
Editada: David Goodmanson el 9 de Nov. de 2021
Hello every body. I can not understand why the function of cscvn of matlab have 4*2*(n-1) coefficients. n is the number of x valeus.

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David Goodmanson
David Goodmanson el 9 de Nov. de 2021
Editada: David Goodmanson el 9 de Nov. de 2021
Hello Ashkan,
factor of (n-1) because n points --> (n-1) intervals, and the polynomials are defined on the intervals
factor of 4 because each polynomial is a cubic and has four coefficients
factor of 2 because each of x and y are defined separately and implicitly by a parameter that is related to arc length

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