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## Main Question or Discussion Point

Hi I decided to purchase mathematica, however it appears this is a much more complicated affair than I had imagined. I will mainly be using it for differential equations (nonlinear, nonhomogenous and coupled, what have you) to help with physics. Could someone clear up some questions I have.

1.For the $295 home package do I get mathematica forever?

2.What is this kernel deal, is 4 enough for me?

3.Does mathematica require a constant internet connection for Numerical integration?

4.Is Mathematica capable of numerically solving any differential equation? (even highly nonlinear ones, like the type present in GR)

1.For the $295 home package do I get mathematica forever?

2.What is this kernel deal, is 4 enough for me?

3.Does mathematica require a constant internet connection for Numerical integration?

4.Is Mathematica capable of numerically solving any differential equation? (even highly nonlinear ones, like the type present in GR)