diff --git a/Smarty.class.php b/Smarty.class.php
index 9001130b..27e5c80f 100644
--- a/Smarty.class.php
+++ b/Smarty.class.php
@@ -564,6 +564,15 @@ class Smarty
         return true;
     }
 
+/*======================================================================*\
+    Function: _syntax_error
+    Purpose:  display Smarty syntax error
+\*======================================================================*/
+    function _syntax_error($error_msg, $error_type = E_USER_ERROR)
+    {
+        trigger_error("Smarty: [in " . $this->_current_file . " line " .
+                      $this->_current_line_no . "]: syntax error: $error_msg", $error_type);
+    }
 }
 
 /* vim: set expandtab: */
diff --git a/docs.sgml b/docs.sgml
index e20d3350..d90a9501 100644
--- a/docs.sgml
+++ b/docs.sgml
@@ -2338,7 +2338,7 @@ OUTPUT:
 
 {* $row_height = 10, $row_width = 20, #col_div# = 2, assigned in template *}
 
-{math equation="height * padding / division"
+{math equation="height * width / division"
       height=$row_height
       width=$row_width
       division=#col_div#}
diff --git a/libs/Smarty.class.php b/libs/Smarty.class.php
index 9001130b..27e5c80f 100644
--- a/libs/Smarty.class.php
+++ b/libs/Smarty.class.php
@@ -564,6 +564,15 @@ class Smarty
         return true;
     }
 
+/*======================================================================*\
+    Function: _syntax_error
+    Purpose:  display Smarty syntax error
+\*======================================================================*/
+    function _syntax_error($error_msg, $error_type = E_USER_ERROR)
+    {
+        trigger_error("Smarty: [in " . $this->_current_file . " line " .
+                      $this->_current_line_no . "]: syntax error: $error_msg", $error_type);
+    }
 }
 
 /* vim: set expandtab: */