PA0465 Console Scientific Calculator Program

                                                           
  Interrupting under 'Utilities' on line 11 calls up a     
  window that allows miscellaneous program control. From   
  this window you can set the autoclear delay (if that     
  option is chosen) from 0 to 99 seconds as well as choose 
  whether or not the answer is copied into operand field #1
  when the autoclear takes place. Other options from this  
  window include setting the range of random numbers       
  generated and turning on and off program debugging       
  features.