Release v0.9.0

Breaking Change

• Refactored logging.

  • Removed asynchronous logging (!288).

  • Implemented log sinks using value objects (!289).

• Assertion failures terminate processes now (!348).

Feature

• Algebraic multigrid method for linear equations (!293, !350).

• New classes for RBF interpolation (!295, !320, !331, !332, !333, !334, !335, !336, !337, !338, !339, !340).

• Gaussian process optimization (!327).

• Simulated annealing for optimization (!329).

• Gamma function (!342).

• GCV for implicit regularization algorithms (!349).

Bug Fixes

• Cuthill-McKee ordering couldn’t be used in Eigen library (!292).

• Fixed tests with MSVC (!294, !298, !296).

• Fixed wrong names for “degree” in Legendre function (!321).

• Fixed downhill simplex method (!330).

Improvement

• Improved performance of numerical integration (!314, !315, !317).

• Common interface class of explicit and implicit solvers for regularization (!345).

• Throw exceptions for invalid arguments from user programs (!346).

Miscellaneous

• Benchmark of optimization using random problems (!290, !313).

• Refactored some tests using ApprovalTests (!311).

• Macro to disable large problems in benchmarks (!316).

• Removed implicit casts of integers and floating-point values (!326).