Added javadocs, made minor changes to the comments

3 files changed, 13 insertions, 12 deletions

diff --git a/src/jcgp/backend/function/DigitalCircuitFunctions.java b/src/jcgp/backend/function/DigitalCircuitFunctions.java
index 0d4ae8e..a217eb7 100644
--- a/src/jcgp/backend/function/DigitalCircuitFunctions.java
+++ b/src/jcgp/backend/function/DigitalCircuitFunctions.java
@@ -5,16 +5,16 @@ package jcgp.backend.function;
  * (defined as unsigned integer functions in the classic
  * CGP implementation) defined in static nested classes.
  * <br>
- * This is the function set used by DigitalCircuitProblem.
+ * This is the function set used by {@code DigitalCircuitProblem}.
  * 
- * @see DigitalCircuiProblem
+ * @see jcgp.backend.modules.problem.DigitalCircuitProblem
  * @author Eduardo Pedroni
  *
  */
 public class DigitalCircuitFunctions extends FunctionSet {
 	
 	/**
-	 * Creates a new instance of DigitalCircuitFunctions.
+	 * Creates a new instance of {@code DigitalCircuitFunctions}.
 	 */
 	public DigitalCircuitFunctions() {
 		registerFunctions(
diff --git a/src/jcgp/backend/function/SymbolicRegressionFunctions.java b/src/jcgp/backend/function/SymbolicRegressionFunctions.java
index 9c6a3b1..a4750fc 100644
--- a/src/jcgp/backend/function/SymbolicRegressionFunctions.java
+++ b/src/jcgp/backend/function/SymbolicRegressionFunctions.java
@@ -1,5 +1,7 @@
 package jcgp.backend.function;
 
+import jcgp.backend.modules.problem.SymbolicRegressionProblem;
+
 /**
  * This class contains all symbolic regression functions
  * (defined as double functions in the classic CGP implementation)
@@ -180,7 +182,7 @@ public class SymbolicRegressionFunctions extends FunctionSet {
 	
 	/**
 	 * Protected tangent function, in radians. Returns the tangent of input 0.
-	 * If input 0 is less than {@link DoubleArithmetic.}DIVISION_LIMIT, 
+	 * If input 0 is less than {@code DoubleArithmetic.DIVISION_LIMIT}, 
 	 * this returns it unchanged.
 	 *
 	 * @see Math
@@ -317,7 +319,7 @@ public class SymbolicRegressionFunctions extends FunctionSet {
 	
 	/**
 	 * Protected natural log function. Returns the natural log of the absolute
-	 * value of input 0. If input 0 is less than {@link DoubleArithmetic.}DIVISION_LIMIT, 
+	 * value of input 0. If input 0 is less than {@code DoubleArithmetic.DIVISION_LIMIT}, 
 	 * this returns it unchanged.
 	 *
 	 * @see Math
@@ -346,7 +348,7 @@ public class SymbolicRegressionFunctions extends FunctionSet {
 	
 	/**
 	 * Protected log base 10 function. Returns the log to base 10 the absolute
-	 * value of input 0. If input 0 is less than {@link DoubleArithmetic.}DIVISION_LIMIT, 
+	 * value of input 0. If input 0 is less than {@code DoubleArithmetic.DIVISION_LIMIT}, 
 	 * this returns it unchanged.
 	 *
 	 * @see Math
diff --git a/src/jcgp/backend/function/TravellingSalesmanFunctions.java b/src/jcgp/backend/function/TravellingSalesmanFunctions.java
index 06b44bb..8a326b5 100644
--- a/src/jcgp/backend/function/TravellingSalesmanFunctions.java
+++ b/src/jcgp/backend/function/TravellingSalesmanFunctions.java
@@ -3,9 +3,8 @@ package jcgp.backend.function;
 /**
  * This class contains all travelling salesman functions in static nested classes.
  * <br>
- * This is the function set used by TravellingSalesmanProblem.
+ * This is the function set to be used by TravellingSalesmanProblem.
  * 
- * @see TravellingSalesmanProblem
  * @author Eduardo Pedroni
  *
  */
@@ -113,7 +112,7 @@ public class TravellingSalesmanFunctions extends FunctionSet {
 	
 	/**
 	 * Scaled exponential function. Returns the exponential of input 0 
-	 * scaled to the range 0 < x < 1.
+	 * scaled to the range 0 &lt; x &gt; 1.
 	 *
 	 * @see Math
 	 */
@@ -228,7 +227,7 @@ public class TravellingSalesmanFunctions extends FunctionSet {
 	
 	/**
 	 * Scaled hypotenuse function. Returns the square root of input 0 squared
-	 * plus input 1 squared, scaled to the range 0 < x < 1.
+	 * plus input 1 squared, scaled to the range 0 &lt; x &gt; 1.
 	 *
 	 * @see Math
 	 */
@@ -257,7 +256,7 @@ public class TravellingSalesmanFunctions extends FunctionSet {
 	
 	/**
 	 * Scaled addition returns the sum of inputs 0 and 1 scaled
-	 * to the range 0 < x < 1.
+	 * to the range 0 &lt; x &gt; 1.
 	 *
 	 */
 	public static class ScaledAddition extends Function {
@@ -285,7 +284,7 @@ public class TravellingSalesmanFunctions extends FunctionSet {
 
 	/**
 	 * Symmetric subtraction returns the absolute difference between inputs 0 and 1,
-	 * scaled to the range 0 < x < 1.
+	 * scaled to the range 0 &lt;; x &gt; 1.
 	 *
 	 */
 	public static class SymmetricSubtraction extends Function {