op_template -> sym_operator

examples/advection/var-velocity.py

examples/gas_dynamics/box-in-box.py

examples/gas_dynamics/euler/vortex.py

examples/gas_dynamics/naca.py

examples/gas_dynamics/square.py

examples/gas_dynamics/wing.py

examples/maxwell/cavities.py

examples/maxwell/inhom-cavity.py

examples/wave/wave.py

grudge/models/advection.py

grudge/models/burgers.py

grudge/models/diffusion.py

grudge/models/em.py

grudge/models/gas_dynamics/__init__.py

grudge/models/gas_dynamics/lbm.py

grudge/models/nd_calculus.py

grudge/models/pml.py

grudge/models/poisson.py

grudge/models/wave.py

grudge/symbolic/tools.py