double circle01_length ( ); double circle01_monomial_integral ( int e[2] ); double *circle01_sample_ergodic ( int n, double &angle ); double *circle01_sample_random ( int n, int &seed ); double *monomial_value ( int m, int n, int e[], double x[] ); double r8vec_sum ( int n, double a[] ); double *r8vec_uniform_01_new ( int n, int &seed ); void timestamp ( );