double p00_fun ( int prob, double x );
void p00_lim ( int prob, double &a, double &b );
int p00_prob_num ( );
void p00_story ( int prob );
string p00_title ( int prob );
double p01_fun ( double x );
void p01_lim ( double &a, double &b );
void p01_story ( );
string p01_title ( );
double p02_fun ( double x );
void p02_lim ( double &a, double &b );
void p02_story ( );
string p02_title ( );
double p03_fun ( double x );
void p03_lim ( double &a, double &b );
void p03_story ( );
string p03_title ( );
double p04_fun ( double x );
void p04_lim ( double &a, double &b );
void p04_story ( );
string p04_title ( );
double p05_fun ( double x );
void p05_lim ( double &a, double &b );
void p05_story ( );
string p05_title ( );
//
//  Because I invoke SPLINE, which also has R8_ABS and R8_MAX, I
//  have to do something idiotic here to hide the names.
//  Yes, I know C++ has a brilliantly better way to do this.  Go away!
//
double r8_abs_copy ( double x );
double r8_max_copy ( double x, double y );