Now I am an official opensource developer. Yay!!!!. Feels great to see some stuff from my side being accepted there. Small beginning, I admit. But hopefully, as we go along, I will contribute more and more. BTW, this community is very friendly and responsive.
I wrote this because I wanted to use quaternions and it not being vectorized is obviously a shame. I have also sent a better routine for vectorized integer multiplication. Let's hope it gets in too. The code is only somewhat faster, but hey something is better than nothing.