add interfaces for Operator and started implementation
changing ints to float64s
flag updates, fleshed out the operator
Doesn't work, but we're getting there
Not sure why all this has to be in the same file
Forgot to save
DUH!
Have to run go run *.go to get it to use all the files.
Added off by one operator
Merge pull request #2 from genghisjahn/interface_1

Interface 1