I would be interested in doing symbolic manipulation of integrals involving
unevaluated functions and symbolic integration domains. A simplified
problem looks like:
I can "typeset" the left-hand-side by:
from sympy import *
x = Symbol('x')
u = Function('u')(x)
lhs = integrate(u, (x, 'Omega',)) + integrate(u, (x, Symbol(r'D \setminus
\Omega'),))
Obviously, it is not possible to simplify the lhs. Is there a object in
Sympy for D and \Omega to enable this?
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