Merge pull request #848 from adamarla/master

Added codex
codices added
Merge pull request #849 from abhinavc/master

Codices for 2/goh/
plotly.eps added
Merge pull request #850 from abhinavc/master

2/35h/95d8m edited
New methods \FRACMAX and \FRACMIN added ...

These methods return the larger or smaller of two fractions
Merge pull request #851 from abhinavc/master

\Forgot to commit changes to g-caluclator
Edited
Merge pull request #852 from abhinavc/master

Edited 2/35h/6oa8m
Margin figure moved below question
Merge pull request #853 from abhinavc/master

2/35h/9kc8m margin figure mved below