numpy.polynomial.chebyshev.Chebyshev.cutdeg

Chebyshev.cutdeg(deg)

Truncate series to the given degree.

Reduce the degree of the Chebyshev 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 : Chebyshev

New instance of Chebyshev with reduced degree.

Notes

New in version 1.5.0.