void ffwt ( int n, double x[] );
void fwt ( int n, double x[] );
void haar ( int n, double x[] );
void haarin ( int n, double x[] );
void hnorm ( int n, double x[] );
int i4_log_2 ( int i );
int i4_max ( int i1, int i2 );
int i4_min ( int i1, int i2 );
int i4_modp ( int i, int j );
int i4_power ( int i, int j );
int i4_wrap ( int ival, int ilo, int ihi );
void r8vec_copy ( int n, double a1[], double a2[] );
double *r8vec_copy_new ( int n, double a1[] );
double *r8vec_uniform_01_new ( int n, int *seed );
void timestamp ( );
void walsh ( int n, double x[] );