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# numpy.polynomial.polynomial.Polynomial.cutdeg

`Polynomial.``cutdeg`(deg)

  Truncate series to the given degree.

  Reduce the degree of the Polynomial series to deg by discarding the high order terms. If deg is greater than the current degree a copy of the current series is returned. This can be useful in least squares where the coefficients of the high degree terms may be very small.

  Parameters : | deg : non-negative int The series is reduced to degree deg by discarding the high order terms. The value of deg must be a non-negative integer.
  Returns : | new_instance : Polynomial New instance of Polynomial with reduced degree.

  Notes

  New in version 1.5.0.