The series module implements series expansions as a function and many related functions.
sequence()
FourierSeries
fourier_series()
FormalPowerSeries
fps()
compute_fps()
FormalPowerSeriesCompose
FormalPowerSeriesInverse
FormalPowerSeriesProduct
FiniteFormalPowerSeries
difference_delta()
dominant()
limit_seq()
Integrals
Series Expansions