PA0465 Console Scientific Calculator Program

  Scientific notation can be chosen for a calculation   
  by pressing the latching touch panel switch labelled  
  'EE'. If one desires to enter values in scientific    
  notation, a capital E must be used to indicate the    
  exponent since a lower case e will be interpreted as  
  the base of the natural logarithms.                   
                                                        
  The result of a calculation will automatically be     
  converted to scientific notation if it would otherwise
  overflow the answer field.                            
                                                        
  Note: FORTRAN limits values to be less than 1.7 E 38  
        and greater than 2.9 E -39 in absolute value.