A note on the summation of Chebyshev series

@article{Clenshaw1955ANO,
  title={A note on the summation of Chebyshev series},
  author={C. W. Clenshaw},
  journal={Mathematics of Computation},
  year={1955},
  volume={9},
  pages={118-120}
}
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References

Polynomial approximations to elementary functions
Graphs of and pass through The approximating polynomial is said to be expanded about c or centered at c. Geometrically, the requirement that means that the graph of passes through the point OfExpand