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# Matlab: a function y where y is the ๐-th Chebyshev polynomial of the first kind evaluated at xy is the ๐-th Chebyshev polynomial of the first kind evaluated at xy is the ๐-th Chebyshev polynomial of the first k

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Anastasia Kyriakou on 10 Feb 2020
Answered: Hiro on 10 Feb 2020
Chebyshev polynomials of the first kind, ?n(?), are defined recursively as follows: ?0(?) = 1, ?1(?) = ?, and ??(?) = 2???โ1(?) โ ??โ2(?), for ? > 1.
I have to write a function with header y = myChebyshevPoly1(n,x), where y is the ?-th Chebyshev polynomial of the first kind evaluated at xy is the ?-th Chebyshev polynomial of the first kind evaluated at xy is the ?-th Chebyshev polynomial of the first kind evaluated at x Be sure your function can take array inputs for x. Use your function to evaluate ?5(?) for ?? = [1 2 5 6 9 18 21 14 3 8 ] /26.
Could anyone help me?
Thanks in advance

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### Answers (1)

Hiro on 10 Feb 2020

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