#include <stdio.h>	//Io
//#include <math.h>	//Pows and stuff.
#include <stdlib.h>	//Serves some purpose, I think it's atof().
#include <time.h>	//gives clock and timing controls.
#include <ctype.h>	//For answering size questions.
#include "libvecmat.h"	//For the vector and matrix things; I made it into a library and link it in.
//Recall the -L. libvecmat.a to bring in the vector/matrix library.
//Recall the -lm to link in the above math header file.
//Recall the -pg to make data for the profiler afterwards

typedef struct fla {unsigned int f0; unsigned int f1; unsigned int f2;} flagbox3;
//Because we have to use so many flags to control how we access the functions,
//This stores a set of three flags, related to the funks as follows:
//f0 is the function itself
//f1 is the gradiant of the function
//f2 is the hessian of the function
//This allows me to group like control flags together with a single silly name.

int main(void);
void parseinput(flagbox3 *flags, vector * vecin);
flagbox3 processinput(const flagbox3 computeflag, vector * vecin, double timer[3], const flagbox3 printflags, const flagbox3 modeflags, flagbox3 *currentTallies);


double funk(double a, double b, double c);
double sumfunk(vector * vecin, vector * f);
void gradfunk(vector * vecin, vector * df, double result, double interval);
void hessfunk(vector * vecin, matrix * ddf, double result, double inteval);

void printoutput(const flagbox3,double timer[3], const flagbox3);



//Global variables
#define INTERVAL .00001	//How far to step dx in the calculus related steps above.
//#define THISISPROGRAM11 1	//If this is program 11, please switch this to 1
//This is actually changed in the makefile so it can compile programs 11 and 13.