Started work on the second floating point lab.
Fixed compile error and clarified problem in second float lab.
Further progress on the second floating point lab.
Added more to the floating point lab.
Finished first draft of second floating point lab and added plotting
script.
Merge branch 'master' into float
Added another problem and another plot to the second floating point lab.
Added solutions to second floating point lab.
Added some extra description to second float lab.
Added a short discussion of machine epsilon to second float lab.
Merge pull request #308 from insertinterestingnamehere/float

Float