What operations are you looking for? How many dimensions? What does this library integrate with?
On one hand, there are simple roll-your-own solutions, such as the complex coordinate system in SICP.
https://mitpress.mit.edu/sites/default/ ... -H-17.htmlOn the other hand, there are complex vectorized solutions, such as for SSE or GPU acceleration.
https://github.com/angavrilov/cl-simdhttps://github.com/angavrilov/cl-gpuMost graphics libraries have their own 2D or 3D vector library.