numpy.polynomial.polynomial.Polynomial.trim — NumPy v1.13 Manual (original) (raw)

Polynomial. 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.