v0.4.3

Added

• Implement interpn_alloc function for each method, which allocates a Vec for the output
• Add test of linear methods using hat function to check grid cell alignment

Changed

• Use recursive method to evaluate multilinear interpolation instead of hypercube method
  • This makes extrapolation cost consistent with interpolation cost, and reduces nominal perf scaling
  • Shows about 2x slower perf in micro-benchmarks, but about 2x faster in end-to-end benchmarks after the Python bindings
    • Need to improve benchmarking strategy to better capture perf in real-life usage
• Reduce repeated documentation
• Remove some inlining annotations and all instances of #[inline(always)]
  • Minimal effect on performance; provides more flexibility to downstream applications, especially opt-level=s builds

v0.4.2

What's Changed

• Implement cubic rectilinear method by @jlogan03 in #11

Full Changelog: v0.4.1...v0.4.2

v0.4.1

Changes

• Fix grid cell index selection to properly center the grid cell s.t. t=0 corresponds to index 1
• Add test of cubic method against sine function to capture potential problems not visible when testing against linear and quadratic functions

v0.4.0

Changes

• Implement cubic interpolation for regular grid
  • Continuous first derivative everywhere
  • Option to clamp to linear extrapolation to prevent unwanted extrapolation of local curvature
    • Test linearized method against linear function in both interpolation and extrapolation
    • Test un-linearized method against quadratic function in both interpolation and extrapolation

v0.3.0

Changes

• Remove initial guess for cell index from rectilinear method
• Collapse some loops
• Remove support for negative step sizes for regular grid in favor of reducing number of abs() calls
• Remove some saturating sub calls that are not needed now that degenerate grids are not supported
• Get indexing dimension product in the same way for rectilinear method as for regular grid method
• Use better initial value for folds
• Update docs
• Use optimizations for tests because it's faster overall

v0.2.0

Changes

• Propagate Result everywhere that unwrap or assert! was being used

v0.1.0

Add release machinery (#2)