This question already has an answer here:

I would like to have my own functions (some sort of helper or utility functions) available all the times I run Mathematica.

How to do that?


marked as duplicate by Yves Klett, Öskå, WReach, Murta, Michael E2 Jan 5 '15 at 4:27

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.