関連ワード:  how to write a series in python    how to create a series in python    how to create a series in python pandas    how to write a taylor series in python    how to write a fibonacci series in python    how to write fibonacci series in python using for loop    how to write fibonacci series in python using recursion    how to write fibonacci series in python using while loop    how to make a fibonacci series in python    how to create a time series in python