Mathematica How to define local variables and constants in mathematica

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To prevent variable name clashes in Mathematica when using multiple notebooks, it's essential to utilize contexts. By setting each notebook to have a unique context, variables like matrices and constants can maintain their individuality without needing to rename them. Clearing global definitions at the start of each notebook can also help avoid unintended overlaps. Local variables can be defined using modules to encapsulate their scope. Implementing these strategies ensures that changes in one notebook do not affect the other.
yashar
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hi
suppose i run Two notebook and in each of them i have matrix A and Constant B and a function C
in each notebook these things have the same name.
if in notebook 1 i assign B=10 then in notebook 2 B is 10 too , which is not my desire.
how can i define these constants and matrices and functions so that they are not affect each other in each notebook.
i do not want to rename one of these entities.

thanks
 
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You can handle this behaviour using Contexts. Under the Evaluation menu, choose "Notebook's Default Context" > "Unique to This Notebook".

Now each notebook will be using different name spaces, and the variables won't clash.
 
thanks
 

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