On 4 Jun., 06:44, Gilbert gede <gilbertg...@gmail.com> wrote:
> Right now, I made a timevaryingsymbol class; it's diff is indeed
> rewritten and works. The problem is once you put that inside an add
> or mul, it's diff method no longer gets called.
What does it differently than Function('name')(t)?
The most obvious way I see to implement this using current sympy
functionality is using Function('...')(t) and using subs() when taking
partial derivatives.
Vinzent
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