The following happens with every notebook I make:
- I define functions and variables.
- When I quit Mathematica and reopen the notebook, all of those definitions have been cleared. The functions and variables I defined are blue'd out and I have to run all the lines again.
How can I prevent this from happening?
Follow-up question: Is there a way to share notebooks with other people such that the definitions are retained? When I send or receive a file, the definitions formerly established in the notebook are cleared out, exactly like the issue I have with reopening my own files.
I know I can Ctrl + A + Enter the notebook, but I'd like to know if there are alternatives.
