`numpy.polynomial.chebyshev:_zseries_to_cseries`

source: build-install/usr/lib/python3.14/site-packages/numpy/polynomial/chebyshev.py :156

Signature

def _zseries_to_cseries ( zs )

Summary

Convert z-series to a Chebyshev series.

Extended Summary

Convert a z series to the equivalent Chebyshev series. The result is never an empty array. The dtype of the return is the same as that of the input. No checks are run on the arguments as this routine is for internal use.

Parameters

zs : 1-D ndarray: Odd length symmetric z-series, ordered from low to high.

Returns

c : 1-D ndarray: Chebyshev coefficients, ordered from low to high.

Aliases

numpy.polynomial.chebyshev._zseries_to_cseries