int i4_min ( int i1, int i2 );
double r8_mod ( double x, double y );
void r8vec_transpose_print ( int n, double a[], string title );
int s_len_trim ( string s );
void timestamp ( );
double vdc ( int i );
double vdc_base ( int i, int b );
double vdc_inverse ( double r );
double *vdc_sequence ( int i1, int i2 );