```python In [4]: np.array([1]) / np.array([0]) /Users/taugspurger/.virtualenvs/pandas-dev/bin/ipython:1: RuntimeWarning: divide by zero encountered in true_divide #!/Users/taugspurger/Envs/pandas-dev/bin/python Out[4]: array([inf]) In [7]: pd.array([1], dtype='Int64') / 0 Out[7]: array([nan]) ```