#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <time.h>

//define the structure type
typedef struct {int n; float *fp;}  Vector;         // a structure 'Vector' to store a n by 1 vector
// typedef struct {int n; int m; float *fp;}  Matrix;  // a structure 'Matrix' to store a n by m matrix
// typedef struct {int f;int df;int ddf;} Int3;      	 // a structure 'Int3' to store the values of f, df, and ddf

// Defined in vector.c
Vector CreateVector(int n);
Vector ReadVector();
void PrintVector(Vector x);
void DestroyVector(Vector x);

// Defined in fA.c
int fA(Vector x,float *fp,int spec);