- Modules - regularization (new) - Tikhonov regularization. - L-curve. - GCV. - interp (new) - Kernel interpolation. - util - Remove lambda functions in macro definition. - Helper function to cast integers safely. - opt - Wrapper class to make ordinary function objects to objective functions in optimization. - 1-dimensional global optimization using sampling. - numbers - Class of floating numbers in a custom number system with given radix. - Build system - Check execution of examples in CI. - Documentation - Check warnings in documentation. - Add documentation of some namespaces without documentation comments. - Documentation of directory structure. - Miscellaneous - Change cmake-format to cmakelang in Pipfile. - Check encoding of source codes. - Upgrade Eigen to 3.4.0. - Dependency scanning in CI.