Summary: I like the product. Currently using with a financial analysis course I am taking and does the job it was purchased to do. Easy to learn, accurate, flexible in doing several iterations to do 'what-if's' by changing variables. I do not do trig so I have no idea how that works. Chief usability feature - the screen is big enough to show the data as you set up the problem. It is a good product at a fair price.
Summary: this little calculator can do a lot of things more than finicial calculation it has a lot of equations and a lot of other math equations very easy to use and useful for many other things very good product for school and students
Summary: I just purchased this item recently and haven't had time to explore everything it can do. I have only used it for basic calculations, but the numerals are easily readable and this calculator will do way more than I will ever need. So far, so good.