NumericalApproximation.h: 2010-12-06 Steven Lambright - Optimized...

NumericalApproximation.h: 2010-12-06 Steven Lambright - Optimized AddData(vector, vector), AddCubicHermiteDeriv(vector), and Init() which causes a very significant increase in performance when constructing a lot or adding a lot of data. 

git-svn-id: http://subversion.wr.usgs.gov/repos/prog/isis3/trunk@1299 41f8697f-d340-4b68-9986-7bafba869bb8