Mathematica symbols are the ultimate atoms of symbolic data. Every symbol has a unique name, exists in a certain Mathematica context or namespace, and can have a variety of types of values and attributes.

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18
votes
0answers
209 views

Are greek symbols causing different evaluation?

I've updated today to Mathematica 9.0.1.0 from version 8 and found something that absolutely confuses me. Let us define a piecewise function: ...
9
votes
0answers
110 views

Is garbage collection broken in version 10.0.0?

In version 10.0.0 under Windows I am observing the following behavior: Do[Module[{foo}, foo[x_] := 1; foo[0]], {10}] Names["foo$*"] ...
5
votes
0answers
249 views

Whats the best practice of using subscripts in symbols?

I have stumbled over several issues about subscripted symbols recently. I would like that I can enter subscripted variables with my keyboard and that they are treated as symbols. I would also like to ...
4
votes
0answers
81 views

Is there a way to check whether two notebooks share the same variables?

When I code in Mathematica, I often re-use code from old notebooks which fulfilled a specific purpose; for example, one testing for soft matches in strings, or one that identifies outliers on a graph ...
2
votes
0answers
150 views

Symbol with Subscript but no quotes in it!

If I use the following function to define me a fancy subscript: ...
0
votes
0answers
73 views

Displaying subscripted symbols with TraditionalForm

I have pasted this code in from Mathematica 10 ...