Change index number in jupyter notebook

Question

I am using a Jupyter Notebook to write some lessons. However, I ran into a problem. As shown in the following figure, when I made changes to my colleague’s notebook program, the index is incorrect. how to change them in 1 , in [2] - in [34], in [35]?

Answer 1

Select menu Cell→ Run all. This will execute all cells and you will have ordered index numbers of the cell. If it does not start with the cell index 1, first click Kernel→ Restartand confirm the restart.