Operation Manual

51Chapter 13. Tools
13. 3 Feedback
On the Home screen, tap Tools -> Feedback, you can:
• View frequently asked questions: Some frequently asked questions are displayed on the Feedback screen.
Tap the question you are interested to get the answer. You can also tap See more FAQ to view more
frequently asked questions and their answers.
• Search questions: To quickly find the question you want, you can tap and enter the key words of your
question. It is noted that you can only find the questions that are already included in Feedback. For more
questions, you can tap Contact us to contact us and get the answer.
• Send feedback: Tap FEEDBACK and follow the onscreen instrutions to enter your feedback, then tap
Submit. You can always go to Feedback -> to view the feedabacks you have sent.
13. 4 Calculator
1. On the Home screen, tap Calculator.
2. Use one of the following methods to switch between the standard and scientific calculators:
• Tap the blue part on the bottom right corner.
• Swipe left the operation part (the area in red dotted box below) at the bottom.