Jose Guzman wrote:
> This is apparently a very easy question, but I am new to the mathematics
> computing environment and it will take me some time to become familiar
> with Sage. The question is the following; Are these two expressions
> similar?
>
> sage: a,b,c = var('a,b,c')
>
> sage: var('a,b,c')
>
> If not, when should I use one or another?
>
> In the documentation regarding the substitute method and when I checked the
> examples I noticed that they show:
>
> sage: x,y,t = var('x,y,t')
>
> I guess this is not necessary because Sage considers by default x as a
> symbolic variable, isn't it?
>
> Thanks in advance.
>
> Jose.
>
> >
>
Ok, thank you both for your nice explanations. In my case I will
substitute the 'a' and 'b' value setting the equation and evaluate the
results algebraically in terms of x and other symbolic variable. I will
probably give you examples once I became more familiar with Sage.
Regards!
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