If someone wants to try that calculation here is the code for it:

Code:

---

#include <iostream>
#include <math.h>
using namespace std;

inline void michael_calculation(double x, double y, double z) {
	double temp = sqrt( x*x+y*y*cos( y)/sin( x)*z*z+y*y)/sqrt(2);
	cout << temp << endl;
}

int main() {
	double x = 0;
	double y = 0;
	double z = 0;
	cout << "Please enter a number for x: ";
	cin >> x;
	cout << "Please enter a number for y: ";
	cin >> y;
	cout << "Please enter a number for z: ";
	cin >> z;
	michael_calculation(1.0,1.0,1.0);
}

---

though the result is always 1.14937...