A small wrapper for core parts of EIgen, c++ library for linear algebra. It is mainly useful for inspecting c++ code which already uses eigen and boost::python. Supported types are Vectors (2,3,6 and dynamic-sized with integer and floating-point values), Matrices (3x3, 6x6 and dynamic-sized with floating-point values) and Quaternions. Numerous methods are wrapped and the original API of Eigen is followed. The code compiles with a c++99 compiler.