math | [mm_vec.h](https://github.com/vurtun/mmx) | BSD |C/C++|**1**| SIMD vector math
math | [ShaderFastLibs](https://github.com/michaldrobot/ShaderFastLibs) | MIT | C++ |**1**| (also HLSL) approximate transcendental functions optimized for shaders (esp. GCN)
math | [TinyExpr](https://github.com/codeplea/tinyexpr) | zlib | C | 2 | evaluation of math expressions from strings
math | [linalg.h](https://github.com/sgorsten/linalg) | **unlicense** | C++ |**1**| vector/matrix/quaternion math
math | [PoissonGenerator.h](https://github.com/corporateshark/poisson-disk-generator) | MIT | C++ |**1**| Poisson disk points generator (disk or rect)
tests | [minctest](https://github.com/codeplea/minctest) | zlib | C |**1**| unit testing
tests | [greatest](https://github.com/silentbicycle/greatest) | iSC | C |**1**| unit testing
tests | [µnit](https://github.com/nemequ/munit) | MIT | C |**1**| unit testing
user interface | [dear imgui](https://github.com/ocornut/imgui) | MIT | C++*| 9 | an immediate-mode GUI formerly named "ImGui"; [3rd-party C wrapper](https://github.com/Extrawurst/cimgui)
_misc_ | [MakeID.h](http://www.humus.name/3D/MakeID.h) | **public domain** | C++ |**1**| allocate/deallocate small integer IDs efficiently