double *ellipsoid_grid ( int n, double r[3], double c[3], int ng );
int ellipsoid_grid_count ( int n, double r[3], double c[3] );
int i4_ceiling ( double x );
void r83vec_print_part ( int n, double a[], int max_print, char *title );
void r8mat_write ( char *output_filename, int m, int n, double table[] );
double r8vec_min ( int n, double r8vec[] );
void timestamp ( void );