04/07/2010, 04:17 PM
(04/07/2010, 04:04 PM)Ztolk Wrote: What is that?
http://en.wikipedia.org/wiki/Integration...bstitution
http://en.wikipedia.org/wiki/M%C3%B6bius_transformation
combining the above two and leaving out the restriction ad -bc = 0 if needed.
regards
tommy1729

