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# numpy.polynomial.chebyshev.Chebyshev.deriv

`Chebyshev.``deriv`(m=1)

  Differentiate.

  Return an instance of Chebyshev that is the derivative of the current series. Refer to `chebder` for full documentation.

  Parameters : | m : non-negative int The number of integrations to perform.
  Returns : | derivative : Chebyshev The derivative of the series using the same domain.

  See also

  `chebder`
    similar function.
  `chebint`
    similar function for integration.