How Do I Feed Numpy.polynomial.chebyshev.chebyshev Coefficients?

How do I feed np.polynomial.Chebyshev coefficients? I'm finding the API to be unintuitive. It looks like it is assuming some coefficient values > import numpy as np > xf = 3

Solution 1:

If you look at the Chebyshev docs, you'll find that the first argument is the coefficients, not the domain. The domain is the optional second argument. For example,

np.polynomial.Chebyshev([0, 3])

is 0*T_0 + 3*T_1.