numpy.polynomial.chebyshev.Chebyshev.truncate

Chebyshev.truncate(size) [source]

Truncate series to length size.

Reduce the series to length size by discarding the high degree terms. The value of size must be a positive integer. This can be useful in least squares where the coefficients of the high degree terms may be very small.

Parameters:
size : positive int

The series is reduced to length size by discarding the high degree terms. The value of size must be a positive integer.

Returns:
new_series : series

New instance of series with truncated coefficients.

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https://docs.scipy.org/doc/numpy-1.15.4/reference/generated/numpy.polynomial.chebyshev.Chebyshev.truncate.html