You can also replace the functions of t with symbols before pickling.
Jason
moorepants.info
+01 530-601-9791
On Wed, Aug 14, 2019 at 9:36 AM Aaron Meurer wrote:
> There are lots of issues with pickling and SymPy unfortunately.
> Functions in particular have issues because they are dynamically
There are lots of issues with pickling and SymPy unfortunately.
Functions in particular have issues because they are dynamically
created classes. The best way to save expressions right now is to use
srepr/sympify.
Aaron Meurer
On Wed, Aug 14, 2019 at 4:33 AM Oscar Benjamin
wrote:
>
> This seems
This seems to be a bug. I think I can reproduce it with:
In [9]: import pickle
In [10]: from sympy.physics.mechanics import dynamicsymbols
In [11]: q1 = dynamicsymbols('q1')
In [12]: pickle.dumps(q1)
---
PicklingError
Hello,
I have derived the equations of motion of a dynamic system symbolically. To
evaluate the Mass Matrix and Coriolis Vector which contain several
derivative terms, the program takes around 14 sec. These two are to be used
for various other places. I tried saving and loading using 'dill'
