Solution 11229: Changing the Calculation Method (Chain or Algebraic Operating System) Format Using the BA II PLUS™ Family Calculator.
How do I change the calculation method (Chain or Algebraic Operating System) format using my BA II PLUS family calculator?
To change the calculation method format to Chain (Chn) or Algebraic-Operating-System (AOS), follow the steps below:
• Press [2nd] [Format] [↓] [↓] [↓] [↓]. The most recently selected calculation method is displayed, either Chn or AOS.
• Press [2nd] [SET] to toggle between Chn and AOS.
• To return to the calculator's home screen, press [2nd] [QUIT].
Please see the BA II PLUS family guidebooks for additional information.