LaTex exercise
Merge branch 'master' of https://github.com/PermuteSeminar/PermuteSeminar-2014
Merge branch 'master' of https://github.com/PermuteSeminar/PermuteSeminar-2014
chloe's week 5
Merge branch 'master' of https://github.com/PermuteSeminar/PermuteSeminar-2014