I am beginner for chebfun. I need some basic understanding about the chebfun.
Sample code:
>> x = chebfun([2 4 6 8 10],[1 5]); where [2 4 6 8 10] data, and [1 5] is range
>> chebpoly(x) returns
>> 0 0.5858 0 3.4142 6.0000
As i understood, these are called coefficient of cheb polynomial function.
>> chebpolyval(x) returns
2
4
6
8
10
>> chebpts(x) returns
1.0000
1.5858
3.0000
4.4142
5.0000Now the question is
1) We have the coefficients, but i dont how the polynomial equation will look like? How chebpolyval computing [ 2 4 6 8 10 ] value?
2) What exactly chebpts return value means?
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