#include "stdafx.h"

#include "iostream"

#include "math.h"



class number

{

public:

	number();

	~number();

	double func()

	{

		return

			5*atan(x1)+(acos(x1)*((x1+3*fabs(x1-y1)+pow(x1,2))/(fabs(x1-y1)*z1+pow(x1,2)))/(-4));
	}

	void setxyz(double x, double y, double z)

	{

		x1 = x;

		y1 = y;

		z1 = z;

	}

private:

	double x1, y1, z1;

};



number::number()

{

}



number::~number()

{

}



int main()

{

	number a;

	using namespace std;

	double x = 0.1722, y = 6.33, z = 3.25e-4;

	a.setxyz(x, y, z);

	cout << "Answer = " << a.func() << endl;

	system("pause");

	return 0;

}