Phiflow

See 54

Version 2.1 introduces item names for dimensions, 3D plotting and much more.
See 52 for details.

Fixes for Jax and PyTorch due to breaking changes in newer versions of these libraries.
In particular https://github.com/google/jax/releases/tag/jax-v0.2.21

Pull request 46

Version 2 introduces major changes. See 43 for details.

**New features**

- Add 1D support for u_net (TensorFlow only)
- Bug fixes and minor additions

Pull request 20

The branch 1.5 will be kept as stable / LTS for Φ-Flow 1

**New features**:
- Consistent floating point precision using `math.set_precision`
- MacCormack advection scheme
- Advanced demo scripts: `rotating_bar.py`, `vortex_fit.py`
- Basic implementation of Broyden's method for root finding
- Lots of convenience updates: `CenteredGrid.sample(function)`, `Domain.dx`, `general_grid_sample_nd`, `interpolate`

**Breaking changes**:
- Finite difference in `gradient` now uses central difference by default
- `Noise` now only has a single channel unless otherwise specified

Pull request 18

This is the last major update of the Φ_Flow 1.x series.