added comments and smaller improvements

versuch05/Vektor.cpp

@@ -54,7 +54,7 @@ Vektor Vektor::rotate(Vektor v, double angle)
 		{0,			 0,			  1}
 	};
 
-	/* Matrix Multiplikation */
+	/* Matrix Multiplikation + Runden */
 	return *new Vektor(
 			round(1000 * (L[0][0] * v.getX() + L[0][1] * v.getY() + L[0][2] * v.getZ())) / 1000,
 			round(1000 * (L[1][0] * v.getX() + L[1][1] * v.getY() + L[1][2] * v.getZ())) / 1000,

versuch05/Vektor.h

@@ -55,7 +55,7 @@ public:
 	void ausgabe();
 
 private:
-	//member
+	// members
 	double x;
 	double y;
 	double z;

versuch05/main.cpp

@@ -4,16 +4,19 @@
 
 int main()
 {
+	/* create Vektor instances */
 	Vektor v1(1, -2, 3);
 	Vektor v2(9.9, 0, 6);
 	Vektor v3(4.1, 9.2, -2.3);
 	Vektor v4 = Vektor::add(v1, v2);
 
+	/* print Vektors */
 	std::cout << "v1 = "; v1.ausgabe();
 	std::cout << "v2 = "; v2.ausgabe();
 	std::cout << "v3 = "; v3.ausgabe();
 	std::cout << "v4 = "; v4.ausgabe();
 
+	/* vector calculus */
 	v3.substract(v4);
 	std::cout << std::endl << "v3-4 = "; v3.ausgabe();
 
@@ -23,18 +26,25 @@ int main()
 
 	std::cout << std::endl << "Rotate pi/2 ccw: v2' = "; Vektor::rotate(v2, M_PI/2).ausgabe();
 	std::cout << "Rotate 52° ccw: v2'' = "; Vektor::rotate(v2, 52*M_PI/180).ausgabe();
+	std::cout << std::endl;
 
 	/* Teilaufgabe 3: Berechnung der Sichtweite */
 	double radius = 6371000;
-	double size1 = 1.8;
-	double size2 = 830;
-	Vektor v5(0, radius + size1, 0);
-	Vektor v6(0, radius + size2, 0);
+	double sizes[2] = {1.8, 830};
 
-	std::cout << std::endl << "Sichtweite bei " << size1 << "m über der Meeresoberfläche: "
-			  << -Vektor::rotate(v5, acos(radius / (radius + size1))).getX() / 1000 << "km" << std::endl;
-	std::cout << "Sichtweite bei " << size2 << "m über der Meeresoberfläche: "
-				  << -Vektor::rotate(v6, acos(radius / (radius + size2))).getX() / 1000 << "km" << std::endl;
+	for (int i = 0; i < 2; i++)
+	{
+		Vektor v5(0, radius + sizes[i], 0);
+
+		/* Vektoren drehen */
+		Vektor v6 = Vektor::rotate(v5, acos(radius / (radius + sizes[i])));
+
+		/* Differenz bilden */
+		Vektor v7(v6.getX(),v6.getY() - radius, v6.getZ());
+
+		std::cout << "Sichtweite bei " << sizes[i] << "m über der Meeresoberfläche: "
+				  << v7.getLength() / 1000 << "km" << std::endl;
+	}
 
 	return 0;
 }

versuch06/expression.h

@@ -4,8 +4,9 @@
 #include <iostream>
 #include <string>
 #include <sstream>	// um double in string umzuwandeln.
+
 /**
- * Abstrakte Interface Klasse
+ * (Abstrakte) Interface Klasse
  */
 class Expression
 {

versuch06/taschenrechner.cpp

@@ -4,10 +4,12 @@
 
 int main(int, char**)
 {
+	/* initialize expressions */
 	Result result1(new Mul(new Const(3), new Add(new Const(2), new Const(9))));
 	Result result2(new Div(new Const(3), new Const(4)));
 	Result result3(new Div(new Const(3), new Sub(new Const(4), new Mul(new Const(1.2), new Const(3)))));
 
+	/* print results */
 	std::cout << result1.print() << " = " << result1.evaluate() << std::endl;
 	std::cout << result2.print() << " = " << result2.evaluate() << std::endl;
 	std::cout << result3.print() << " = " << result3.evaluate() << std::endl;

versuch08 - teil1/src/StackSpeicher.h

@@ -77,7 +77,7 @@ bool StackSpeicher<size, T>::pop(T& e)
 }
 
 //////////////////////////////////////////////////////////////////////////////
-// Sortieren
+// Sortieren mit Quicksort
 template<int size, class T>
 void StackSpeicher<size, T>::sort(int start = 0, int ende = -1)
 {

versuch08 - teil1/src/main.cpp

@@ -18,7 +18,7 @@ using namespace std;
 
 int main()
 {
-	/* instantiate students */
+	/* create students */
 	Student stud1(22222, "Born"      ,"Jessica", "16.03.1986");
 	Student stud2(24528, "Rodenstock","Max"    , "09.02.1985");
 	Student stud3(95420, "Schneider" ,"Petra"  , "29.12.1989");

versuch08 - teil2/src/main.cpp

@@ -39,9 +39,10 @@ int main()
 	students.push_back(stud7);
 	students.push_back(stud8);
 
+	/* use std::algorithms to sort vector */
 	sort(students.begin(), students.end());
 
-	/* output again */
+	/* iterate over vector and print */
 	for (vector<Student>::iterator it = students.begin(); it != students.end(); ++it)
 	{
 		cout << *it;