diff --git a/AbMath/AbMath.dll b/AbMath/AbMath.dll
index e9b94ce..b9a46d4 100644
Binary files a/AbMath/AbMath.dll and b/AbMath/AbMath.dll differ
diff --git a/AbMath/Calculator/Tokenizer.cs b/AbMath/Calculator/Tokenizer.cs
index 3841a96..697e82f 100644
--- a/AbMath/Calculator/Tokenizer.cs
+++ b/AbMath/Calculator/Tokenizer.cs
@@ -76,6 +76,11 @@ public List<Term> Tokenize()
                             WriteToken("Unary");
                         }
                     }
+                    else if (_dataStore.IsNumber( _character ) && _token == "-.")
+                    {
+                        _rule = "Decimal Append";
+                        _token += _character;
+                    }
                     else if ( ( _dataStore.IsNumber(_token) ) && ( _dataStore.IsVariable(_character) || _dataStore.IsLeftBracket(_character) || _dataStore.IsFunction(_character)))
                     {
                         WriteToken("Left Implicit");
diff --git a/Unit Tester/Apportionment/Utilities/Reverse Polish Notation/PostFix.cs b/Unit Tester/Apportionment/Utilities/Reverse Polish Notation/PostFix.cs
index d5eb298..2b779ce 100644
--- a/Unit Tester/Apportionment/Utilities/Reverse Polish Notation/PostFix.cs	
+++ b/Unit Tester/Apportionment/Utilities/Reverse Polish Notation/PostFix.cs	
@@ -75,6 +75,16 @@ public void UnarySubtract2()
             Assert.AreEqual(3, math.Compute());
         }
 
+        [Test]
+        public void UnaryDecimal()
+        {
+            test.SetEquation("-.5 + .5");
+
+            test.Compute();
+            PostFix math = new PostFix(test);
+            Assert.AreEqual(0, math.Compute());
+        }
+
         [Test]
         public void Sin()
         {