chebpow(c, pow, maxpower=16)[source]¶
Raise a Chebyshev series to a power.
Returns the Chebyshev series c raised to the power pow. The argument c is a sequence of coefficients ordered from low to high. i.e., [1,2,3] is the series
T_0 + 2*T_1 + 3*T_2.
- c : array_like
1-D array of Chebyshev series coefficients ordered from low to high.
- pow : integer
Power to which the series will be raised
- maxpower : integer, optional
Maximum power allowed. This is mainly to limit growth of the series to unmanageable size. Default is 16
- coef : ndarray
Chebyshev series of power.
>>> from numpy.polynomial import chebyshev as C >>> C.chebpow([1, 2, 3, 4], 2) array([15.5, 22. , 16. , ..., 12.5, 12. , 8. ])