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   MAKE AN INSTANT CALCULATOR   
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   PRODUCT   :  R:BASE                  VERSION      :  3.1 or Higher
   CATEGORY  :  PROGRAMMING             SUBCATEGORY  :  KEYMAPS
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   By defining and saving a key map (a keyboard macro) for [Alt-F1], you can 
   calculate results on the fly in any R:BASE session.
 
   Even people who know nothing about R:BASE can use the calculator by 
   pressing [Alt-F1] at the R> prompt and entering the expression they want 
   to calculate. You can use an R:BASE function or any other mathematical 
   expression. R:BASE does the calculation and displays the answer.
 
   Define the key map by following this procedure exactly:
 
   <>  Press [Ctrl-F1]
   <>  Choose Define a key map
   <>  Press [Alt-F1]
   <>  Enter: SET VAR zz_ DOUBLE = &
   <>  Press [Enter]
   <>  Enter: SHOW VAR zz_
   <>  Press [Enter]
   <>  Press [Ctrl-F2]
 
   Save the key map by choosing Settings under Tools on the Main Menu  
   and then choosing Save settings to... under Configuration on the 
   Settings menu.
 
   Once you save the current settings to the configuration file (RBASE.CFG), 
   R:BASE will define the key map at the beginning of every R:BASE session.
 
                                                                          
   Whenever you need a calculator, press [Alt-F1] at any R> prompt and enter
   an expression. For example, enter 655/5 to get the answer 131, or enter 
   (SQRT(2)) to get the square root of 2. You must put parentheses around function 
   expressions, but other calculations, such as 144/12*3, don't need them.
 
   Make sure you don't use the variable ZZ_ for any other purpose or else 
   choose a different name for your calculator variable.