deletions | additions       diff --git a/C++ Functions.tex b/C++ Functions.tex  index 5e97e5d..287d58e 100644  --- a/C++ Functions.tex  +++ b/C++ Functions.tex 
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The package supports the implementation of the objective and gradient functions in C++, which may yield significant speed improvements over the respective R implementations. The optimization routine's API accepts both R function objects and external pointers to compiled C++ functions. To perform optimization on the Rosenbrock function, we begin by defining the C++ implementations of the objective and of the gradient as character strings:  \lstset{language=R}   \begin{lstlisting}  objective.include <- 'Rcpp::NumericVector rosenbrock(SEXP xs) {   Rcpp::NumericVector x(xs);