The appendix of this article has a slightly more intuitive explanation: http://blog.quenta.org/2012/09/0x5f3759df-appendix.html http://blog.quenta.org/2012/09/0

The appendix of this article has a slightly more intuitive explanation: http://blog.quenta.org/2012/09/0x5f3759df-appendix.html http://blog.quenta.org/2012/09/0x5f3759df-appendix.html