#include <iostream.h>
#include <iomanip.h>
#include <math.h>
int main()
{
    float x=3, y=4, z;
    
    z = sqrt(1234321); //sqrt qudratwurzel
    cout << "square root of 1234321 is " << z << endl;
    
    z=exp(1); //exponentialfkt
    cout.setf(ios::fixed); cout.precision(20); //cout.precision = anzahl der nachkommestellen max. 16 nachkommastellen...
    cout << "Eulersche Zahl " << z << endl;
    
    cout.precision(5);
    z = pow(3,4); 
    cout << "3 to the power of 4 = " << z << endl;
    
    cout.precision(5);
    z = sin(30*3.14159/380);  //argument im BOGENMAß!
    cout << "sin (30 grad) = " << z << endl;
cout << "\nProgrammende...";
cin.get (); cin.get();
return(0);    
    }

/*

*/