GLM
0.9.5

The core of GLM, which implements exactly and only the GLSL specification to the degree possible.
The GLM core consists of C++ types that mirror GLSL types and C++ functions that mirror the GLSL functions. It also includes a set of precisionbased types that can be used in the appropriate functions. The C++ types are all based on a basic set of template types.
The best documentation for GLM Core is the current GLSL specification, version 4.2 (pdf file). There are a few differences between GLM core and GLSL.
GLM core functionnalities require <glm/glm.hpp> to be included to be used.