double f1 (double x, void * params);
double f2 (double x, void * params);
double f3 (double x, void * params);
double f4 (double x, void * params);
double f5 (double x, void * params);

double f6 (double x, void * params);
double f7 (double x, void * params);
double f8 (double x, void * params);
double f9 (double x, void * params);
double f10 (double x, void * params);

double f11 (double x, void * params);
double f12 (double x, void * params);
double f13 (double x, void * params);
double f14 (double x, void * params);
double f15 (double x, void * params);

double f16 (double x, void * params);
double f17 (double x, void * params);

double f454 (double x, void * params);
double f455 (double x, void * params);
double f456 (double x, void * params);
double f457 (double x, void * params);
double f458 (double x, void * params);
double f459 (double x, void * params);

double myfn1 (double x, void * params);
double myfn2 (double x, void * params);