double p00_fun ( int prob, double x );
void p00_lim ( int prob, double *a, double *b );
int p00_prob_num ( void );
void p00_story ( int prob );
void p00_title ( int prob, char *title );
double p01_fun ( double x );
void p01_lim ( double *a, double *b );
void p01_story ( void );
void p01_title ( char *title );
double p02_fun ( double x );
void p02_lim ( double *a, double *b );
void p02_story ( void );
void p02_title ( char *title );
double p03_fun ( double x );
void p03_lim ( double *a, double *b );
void p03_story ( void );
void p03_title ( char *title );
double p04_fun ( double x );
void p04_lim ( double *a, double *b );
void p04_story ( void );
void p04_title ( char *title );
double p05_fun ( double x );
void p05_lim ( double *a, double *b );
void p05_story ( void );
void p05_title ( char *title );
/*
  Because I invoke SPLINE, which also has R8_ABS and R8_MAX, I
  have to do something idiotic here to hide the names.
*/
double r8_abs_copy ( double x );
double r8_max_copy ( double x, double y );