numpy.polynomial.chebyshev.cheb2poly(c)
[source]
Convert a Chebyshev series to a polynomial.
Convert an array representing the coefficients of a Chebyshev series, ordered from lowest degree to highest, to an array of the coefficients of the equivalent polynomial (relative to the “standard” basis) ordered from lowest to highest degree.
Parameters: 


Returns: 

See also
The easy way to do conversions between polynomial basis sets is to use the convert method of a class instance.
>>> from numpy import polynomial as P >>> c = P.Chebyshev(range(4)) >>> c Chebyshev([0., 1., 2., 3.], domain=[1, 1], window=[1, 1]) >>> p = c.convert(kind=P.Polynomial) >>> p Polynomial([2., 8., 4., 12.], domain=[1., 1.], window=[1., 1.]) >>> P.chebyshev.cheb2poly(range(4)) array([2., 8., 4., 12.])
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