Posted by Steve Lay
Readers of this blog will have noticed Doug’s announcement that Questionmark Live now has an equation editor. This is a subject dear to my heart, not only did I study Maths at university (or Math as readers in the US might say) but I also went on to work in a number of maths-related projects.
One such project was called Pass Maths, an internet magazine aimed at encouraging people to study maths at higher education level. The magazine was created at the University of Cambridge by Dr Robert Harding and me with some funding from BT, a UK-based telecoms provider. I left the project in 1999 but the magazine has gone from strength to strength and is now published under the name Plus Magazine.
So when Doug Peterson told me that the eQuation Formula Editor had been released I had to try it out.

This question is not actually as hard as it looks, but if you need to revise your continued fractions you could try reading this excellent Plus Magazine article by the Mathematics professor and popular author John D. Barrow, Chaos in Numberland: the secret life of continued fractions.