#mathematics

Fast and accurate evaluation of the real valued parts of the principal and secondary branches of the Lambert W function with the method of Toshio Fukushima.

CasADi is a symbolic framework for numeric optimization implementing automatic differentiation in forward and reverse modes on sparse matrix-valued computational graphs. It supports self-contained C-code generation and interfaces state-of-the-art codes such as SUNDIALS, IPOPT etc. It can be used from C++, Python or Matlab/Octave.

Boolean Operations for 2D Polygons: Supports intersection, union, difference, xor, and self-intersections for all polygon varieties.

Python interface for igraph

CubeK: high-performance multi-platform kernels in CubeCL

Covers NDS math aspects like coordinates and tiling implemented for multiple programming languages.

A library set of arbitrary precision numbers implemented in Rust.

A Rust crate that provides hard-to-misuse rigid body transforms (aka "spatial math") for engineers with other things to worry about than linear algebra.

Feral is a pure-Rust sparse symmetric indefinite linear solver with certified inertia counts for use in interior-point optimization algorithms.

A library of modern Fortran modules for nonlinear optimization