Truncate series to length size.
Reduce the series to length size by discarding the high
degree terms. The value of size must be a positive integer. This
can be useful in least squares where the coefficients of the
high degree terms may be very small.
- Parameters:
- sizepositive int
The series is reduced to length size by discarding the high
degree terms. The value of size must be a positive integer.
- Returns:
- new_seriesseries
New instance of series with truncated coefficients.