Casio FX-991ES Plus-2nd Edition Scientific Calculator

Works well. Nice product really standard. Suitable for engineering students. Adjustable display contrast. Light weight. Super fast . Compact. Battery lasts for a very very very long time. I'm using it since 4 years and the battery still works!! It even survives a lot of drops as well.

It's simple and does the job very well, the display is clear, the buttons feel good and the quality of casio speaks for itself.

good 👍

No, I will try to make this review as end up as possible, but I think you already know how calculated functions and this one functions perfectly well it’s great for your IGCSE’s and all the options work well it’s comfortable to use the design is perfectly well. The speed when using this product is also good it’s lightweight but when you put the power on, it else gets slightly heavier, but it’s perfectly lightweight and easy to carry around. Just make sure that it fits in your pencil case all the buttons work smoothly I used this specific Casio calculator Throughout all my igcses and they really did deliver

It has a great build, with a really good display, and is excellent in its price point. The major feature of this calculator that sets it apart from its competitors is its full matrix display, where you can see up to a 3x3 matrix as a whole, which can help you in rectifying erroneous values. It is also non-programmable, which means you can use it in almost all exams that allow a scientific calculator. However, a CW version with a better display and more features is available for just 10 rupees more (as of when I'm writing this review), the reason why I didn't pick it is because it might confuse invigilators if you are taking it to an examination, just because it looks more modern, and much more like an actual phone screen with good icons. However, the CW is still non-programmable and allowed in examinations, but you might have to explain if the invigilator is unfamiliar with the model. It also has a front slide-in protector, which can be slid into the back when using the calculator. The calculator by itself is really thin, and having the protector gives a better feel to your hand (and makes sure you don't miss the protector). I have been using it for more than a year now and it has never died on me, most probably due to the built-in self-charging solar option, which charges the batteries as you use it. In conclusion, I would recommend this product over others in its category any day, but if you are taking an exam in a familiar environment or are ready to chat about the non-programmable character, you are better off with the CW model.

Value for money good quality

Good functionality

Students in Electrical engineering must purchase it.