how to speed up a vector cross product calculation

Question

Hi I\'m relatively new here and trying to do some calculations with numpy. I\'m experiencing a long elapse time from one particular calculation and can\'t work out any faste

Answer 1

While writing dynamic simulations for underwater vehicles I have found this method for fast cross product:

https://github.com/simena86/Simulink-Underwater-Robotics-Simulator/blob/master/3rdparty/gnc_mfiles/Smtrx.m

Which works well, it is written in Matlab but the code is very simple. Just read the comments at the top.