MW Arrays

// Source.cpp


#include <iostream>
#include <cmath>
#include "Header.h"

using namespace std;

float arMittel();
float geoMittel();
float harMittel();


void main() {

	while (true) {

		char m;

		cout << "Bitte wählen Sie die Art ihres Mittelwerts: " << endl;
		cout << "1: Arithmetischer Mittelwert " << endl;
		cout << "2: Geometrischer Mittelwert " << endl;
		cout << "3: Harmonischer Mittelwert " << endl;
		cout << "Q: Programm beenden " << endl << endl;
		cin >> m;
		cout << endl;

		switch (m) {

		case '1':

			cout << "Arithmetischer Mittelwert: " << arMittel() << endl;
			cout << endl;

			break;

		case '2':


			cout << "Geometrischer Mittelwert: " << geoMittel() << endl;
			cout << endl;

			break;

		case '3':


			cout << "Harmonischer Mittelwert: " << harMittel() << endl;
			cout << endl;

			break;

		case 'q':
		case 'Q':
			return;

		default:

			cout << "Falsche Eingabe!" << endl << endl;


		}
	}

}

// Header.h
#pragma once

#include <cmath>

float arMittel() {

	int a[32];

	for (int i = 0; i < 32; i++) {
		a[i] = 3 * i;
	}

	float S = 0;

	for (int j = 0; j < 32; j++) {
		S = S + a[j];
	}
	return S / 32;

}







float geoMittel() {

	int a[32];

	for (int i = 0; i < 32; i++) {

		a[i] = 3 * i;
	}

	double P = 1.0;

	for (int j = 1; j < 32; j++) {

		P = P * a[j];
	}


	double MG = 0;


	MG = pow(P, (1.0 / (31.0)));




	return MG;
}




float harMittel() {

	float a[32];



	for (int i = 1; i < 32; i++) {

		a[i] = (1.0 / (i * 3.0));


	}

	float S = 0;

	for (int j = 1; j < 32; j++) {

		S = S + a[j];
	}

	float MH = 0;

	MH = 31 / S;




	return MH;
}