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Possible Duplicate:
Is there a way to separate variables between multiple notebooks?

I assigned a global variable like a=10; It works in all my notebooks, but I want to restrict that global variable to that notebook only.

How to do that?

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marked as duplicate by R. M., Leonid Shifrin, Dr. belisarius, Ajasja, Mr.Wizard Jul 15 '12 at 19:58

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.

Go to Notebooks->Notebook's Default Context and select Unique to this notebook:

enter image description here

Now, could you possibly use more reasonable capitalization and punctuation in your questions?

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