How to write a python function to generate fourier series like the "fourier" function in R?

Question

fourier(series,k) returns a matrix containing terms from a Fourier series( cos and sin), up to order K(parameter). How to code a similar function in python?

Answer 1

I can think of 2 options for fast fourier transforms in python:

scipy FFT

numpy FFT

you can also refer to this post