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

//define the 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


Vector CreateVector(int n);
Vector ReadVector();
void PrintVector(Vector x);
void DestroyVector(Vector *x);


Matrix CreateMatrix(int n, int m);
void PrintMatrix(Matrix X);
void DestroyMatrix(Matrix *X);

 
int fB(Vector x,float *f,Vector *df,Matrix *ddf,Int3 spec);