numpy.polynomial.chebyshev.Chebyshev.trim

Chebyshev.trim(tol=0) [source]

Remove trailing coefficients

Remove trailing coefficients until a coefficient is reached whose absolute value greater than tol or the beginning of the series is reached. If all the coefficients would be removed the series is set to [0]. A new series instance is returned with the new coefficients. The current instance remains unchanged.

Parameters:	tol : non-negative number. All trailing coefficients less than tol will be removed.
Returns:	new_series : series Contains the new set of coefficients.