Chapter 2 Table of Contents Getting Started Developing Routines for Later Use , , , '., , , , , , , , , 7 Overview , , ,. ,..... " 9 Program Creation ............................................................. 9 Program Entry ............. .. .... .. ............... ..,....... . ......... 14 Other Extensions .. 16 Modules, Routines, and Such ..... . ............ ., , 17 Names. . . . . . . .. . .......... " ................. " ........... ,...... . ........ 17 Survey of Modules and Routines . . .. . " , , , , , 18 Setting Aside Memory .. , ........ , ..... , , , 19 Retrieving and Storing Modules .,................ . .... , ....... , ...... ,'. .., .... 22