Thank you.
My ideal would be something like:
x = var('x')
t = symbols('t')
y = exp(-x)*exp(t*x)
y
exp((t-1)*x)
I'm thinking about moment generating functions.
Thanks!
Erin
On Friday, November 8, 2013 9:50:06 PM UTC-6, Aaron Meurer wrote:
>
> Take a read of http://docs.sympy.org/latest/tutorial/gotchas.html#symbols
> (and I recommend the rest of that tutorial as well). You need to
> define t first. Probably you just want to add
>
> t = symbols('t')
>
> somewhere to your script.
>
> Aaron Meurer
>
>
>
> On Fri, Nov 8, 2013 at 6:48 PM, Erin Hodgess
> <[email protected]<javascript:>>
> wrote:
> > Hello!
> >
> > I would like to use a letter as a constant in
> integration/differentiation
> > problems but I am having some trouble.
> >
> > For instance, I would like to have
> > exp(t*x)
> >
> > But when I do that, I get "t is not defined".
> >
> > This is in Python 2.7.5
> >
> > Thanks for any help!
> >
> > Sincerely,
> > Erin
> >
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