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diff -u gnuCurveFit.h.orig gnuCurveFit.h --- gnuCurveFit.h.orig Mon May 18 04:08:30 1998 +++ gnuCurveFit.h Thu Oct 30 21:42:04 2003 @@ -23,6 +23,8 @@ #include <string> +using namespace std; + #ifndef gnuCurveFit_included #define gnuCurveFit_included