Be sure to buy a professional calculator. I use BA II Plus. Many problems in textbooks and study notes are solved by special calculators, and there are step-by-step instructions to tell you how to get the results.

1. There are many questions in the exam, and you need to practice with a professional calculator often to get a correct conclusion in the exam.

2. It is totally meaningless to use the things on the web page. Professional calculators can calculate many categories to show your specificity. What do people want you to do after work? Do you want to turn on the computer? I think it's best to prepare one for financial analysis. It's not very expensive.