+-----------------------------------------------------------------------------+
|                                  extension                                  |
+-----------------------------------------------------------------------------+
 
Abbreviation:  �|\ex�%
 
Parameters:    �|none�%
 
    �|Description:�%
The \extension  markup sets the face  to the Computer  Modern Math Extension
face.    Refer  to The  TEXbook,  Appendix F,  for  a complete  list  of the
characters available in the Extension face.
 
    �|Example:�%
This example uses \extension to print an "O dot":
 
Put a {\extension\char'113} next to  . . .
+-----------------------------------------------------------------------------+
|                                                                             |
|     Put a K next to  . . .                                                  |
|                                                                             |
|                                                                             |
+-----------------------------------------------------------------------------+
 
    �|Notes:�%
For more on the use of the \char markup, refer to The TEXbook.