On Friday, June 30, 2017 at 9:21:18 AM UTC+2, HG wrote:
>
> http://arachnoid.com/sage/differential1.html
>
> ValueError: Variable 't' not found
>
>
If you look at that arachnoid webpage you'll find this:
var('r c t')
Without defining a variable you cannot use it, even if it's bound.
Regards,
--
On Thursday, June 29, 2017 at 8:38:36 PM UTC+2, Jacob Pelletier wrote:
>
> I am trying to mix sage and sympy code via Jupyter Notebooks.
> Is there an easy way to overload the _sympy_() or _sage_() methods for
> vars,symbols, and functions?
>
Not without Sage recompilation.
> Also, when I try
Hi,
I got this example from here :
http://arachnoid.com/sage/differential1.html
For many years it was working, I use now sage 7.6 or sage 8 but I go the
same error it can get the variable t, as I know it's working, any help ?
# r = 1000 ohms, c = 0.5e-6 farads, f = 440
r = 1000
c = 0.5e-6
f
