diff --git a/docs/expressions/syntax.md b/docs/expressions/syntax.md
index ee4cb4977..7cae447e4 100644
--- a/docs/expressions/syntax.md
+++ b/docs/expressions/syntax.md
@@ -391,6 +391,11 @@ a string can be retrieved or replaced by using indexes. Strings can be converted
 to a number using function `number`, and numbers can be converted to a string
 using function `string`.
 
+When setting the value of a character in a string, the character that has been
+set is returned. Likewise, when a range of characters is set, that range of
+characters is returned. 
+
+
 ```js
 var parser = math.parser();
 
@@ -399,10 +404,11 @@ parser.eval('"hello"');                       // String, "hello"
 
 // string manipulation
 parser.eval('a = concat("hello", " world")'); // String, "hello world"
-parser.eval('size(a)');                       // Number, 11
+parser.eval('size(a)');                       // Matrix [11]
 parser.eval('a[1:5]');                        // String, "hello"
-parser.eval('a[1] = "H"');                    // String, "Hello"
-parser.eval('a[7:12] = "there!"');            // String, "Hello there!"
+parser.eval('a[1] = "H"');                    // String, "H"
+parser.eval('a[7:12] = "there!"');            // String, "there!"
+parser.eval('a');                             // String, "Hello there!"
 
 // string conversion
 parser.eval('number("300")');                 // Number, 300