int i4_max ( int i1, int i2 );
int i4_min ( int i1, int i2 );
double moment ( int n, double x[], double y[], int p, int q );
double moment_central ( int n, double x[], double y[], int p, int q );
double moment_normalized ( int n, double x[], double y[], int p, int q );
double r8_choose ( int n, int k );
double r8_mop ( int i );
void timestamp ( );