# Working TODO
- [x] Wave Constant
- Sources
	- [x] Temporal Shapes / Continuous Wave Temporal Shape
	- [x] Temporal Shapes / Symbolic Temporal Shape
	- [x] Plane Wave Source
	- [ ] TFSF Source
	- [x] Gaussian Beam Source
	- [ ] Astig. Gauss Beam
- Monitors
	- [x] EH Field
	- [x] Power Flux
	- [x] Permittivity
	- [ ] Diffraction
- Tidy3D / Integration
	- [ ] Exporter
	- [ ] Combine
	- [ ] Importer
- Sim Grid
	- [ ] Sim Grid
	- [ ] Auto
	- [ ] Manual
	- [ ] Uniform
	- [ ] Data
- Structures
	- [x] Cylinder
	- [ ] Cylinder Array
	- [ ] L-Cavity Cylinder
	- [ ] H-Cavity Cylinder
	- [ ] FCC Lattice
	- [ ] BCC Lattice
	- [ ] Monkey
- Expr Socket
	- [x] LVF Mode
- Math Nodes
	- [ ] Reduce Math
	- [x] Transform Math - reindex freq->wl
- Material Data Fitting
	- [ ] Data File Import
	- [ ] DataFit Medium
- Mediums
	- [ ] Non-Linearities
	- [ ] PEC Medium
	- [ ] Isotropic Medium
	- [ ] Sellmeier Medium
	- [ ] Drude Medium
	- [ ] Debye Medium
	- [ ] Anisotropic Medium
- Integration
	- [x] Simulation and Analysis of Maxim's Cavity
- Constants
	- [x] Number Constant
	- [x] Vector Constant
	- [x] Physical Constant

- [x] Fix many problems by persisting `_enum_cb_cache` and `_str_cb_cache`.