User:Jermcb

Quaternions and spatial rotation
Warning, your contribution from 11th september 2009 was wrong, you introduced wrong signs. Fortunately enough, Ploncomi programmed the formula in some software and noticed the new signs were wrong, and fixed the formula. I just redid the computations (two hours tedious algebra work) and the original formula was indeed correct. I hope that helps. Best, MathsPoetry (talk) 16:02, 1 January 2010 (UTC)