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    Chebyshev polynomial interpolation

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    Calculate the five Chebyshev nodes in the interval [-1,1] which are used when interpolating with a degree four polynomial. Evaluate the function f(x)=2arcsin(x) at each of these points. Construct the degree four Chebyshev polynomial. Evaluate the resulting polynomial at x=0.8 and compare with the actual value of the function.

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    Solution Summary

    The solution demonstrates how to interpolate a function using Chebyshev polynomials. The resulting polynomials are compared for the actual value of a function.