Add Exception classes

src/exception/ComplexException.java

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+package exception;
+
+public class ComplexException extends Exception {
+
+	/**
+	 * UID
+	 */
+	private static final long serialVersionUID = -3407159767141706416L;
+
+	public ComplexException() {
+		super("This operation is complex.");
+	}
+
+	public ComplexException(String message) {
+		super(message);
+	}
+
+}

src/exception/IllegalDimensionException.java

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+package exception;
+
+public class IllegalDimensionException extends Exception {
+
+	/**
+	 * UID
+	 */
+	private static final long serialVersionUID = -1944427376879428635L;
+
+	public IllegalDimensionException() {
+		super("Illegal dimensions.");
+	}
+
+	public IllegalDimensionException(String message) {
+		super(message);
+	}
+
+}

src/exception/IllegalSetupException.java

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+package exception;
+
+public class IllegalSetupException extends Exception {
+
+	/**
+	 * UID
+	 */
+	private static final long serialVersionUID = 4245692066570468500L;
+
+	public IllegalSetupException() {
+		super("Illegal setup.");
+	}
+
+	public IllegalSetupException(String message) {
+		super(message);
+	}
+
+}

src/exception/NoSquareException.java

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+package exception;
+
+public class NoSquareException extends Exception {
+
+	private static final long serialVersionUID = -4049443845429534140L;
+
+	public NoSquareException() {
+		super("This operation requires a square matrix.");
+	}
+
+	public NoSquareException(String message) {
+		super(message);
+	}
+
+}

src/exception/SingularException.java

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+package exception;
+
+public class SingularException extends Exception {
+
+	private static final long serialVersionUID = -5121014712549208662L;
+
+	public SingularException() {
+		super("This operation requires a non-singular matrix.");
+	}
+
+	public SingularException(String message) {
+		super(message);
+	}
+
+}

src/exception/package-info.java

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+/**
+ * Exceptions
+ * 
+ * @author Daniel Weschke
+ */
+package exception;