Casio FX-991EX-S-EH-V
Short review
Buy Casio FX-991EX-S-EH-V
Specifications Casio FX-991EX-S-EH-V
| The main | |
| A type | calculator |
| View | scientific |
| Model | CASIO FX-991EX-S-EH-V |
| Colour | the black |
| Material | plastic |
| Execution | |
| Main characteristics | |
| Bit depth | 12 |
| Display Lines | multiline |
| Total number of functions | 552 |
| Functions | percent calculation, hyperbolic functions, coordinate system transformations (polar / rectangular) and angular transformations, trigonometric calculations, factorial, combination, permutation, fractional calculations, random number generator, metric conversions, decimal and natural logarithms, square and cube roots, squaring , inverse function, factorial, factorization of numbers into prime factors, tabular editor of statistical data, calculations with vectors, equation, system of equations, polynomial equation, calculations with matrices, logical operations, calculation of numerical differential, calculation of numerical integration, regression analysis, 47 scientific constants |
| Features: | high resolution display |
| Food | |
| Power type | batteries |
| Battery Form Factor | LR-44 |
| Number of batteries | 1 |
| Auto power off | there is |
| Dimensions and weight | |
| Width | 165.5 mm |
| Height | 77 mm |
| Thickness | 11.1 mm |
| Weight | 90 g |
Casio FX-991EX-S-EH-V reviews
An excellent calculator for school and university. Very versatile, charting. At the time of purchase, the label "Recommended for the Unified State Exam in Physics and Chemistry" was pasted on it.
No
I bought it for my son, who is preparing to take the exam. Very satisfied. I still have a CASIO calculator with which I myself studied at the institute. He is still a worker (over 20 years!). The only thing he has, of course, is limited functionality, in comparison with this model. In my opinion, this device is simply "space". Recommend!
The device is fully consistent with the purpose of the Scientific Calculator. Many functions from different sciences, physics, economics, etc. It is very convenient from the point of view of ergonomics, and in terms of work and functions performed.
No.
The budget is certainly not small for a calculator. But there are no other options!
Bought for my son, grade 9, is fond of physics and takes part in all sorts of serious Olympiads. On most a calculator is possible. And for home use for solving problems. In general, he is constantly in business.
There was a sticker on it that is possible on the exam, exam, but I don't know for sure.
And the machine is very good for complex long calculations, because you see the entire sequence of actions on the screen, a fur error is excluded. In addition, along the way, you can make corrections, and not start all over again, roll back. In general, the sea of chips, functions have everything that only exists.
Several months of experience.
The machine is big enough, which is good.
All the same, this is use in the mode on the table. Massive enough. Convenient large buttons, large screen.
It also works in a relatively dimly lit room. Nice materials. And the brand is old. We have an ancient scientific cassio at home, it is more than 30 years old, it works!
In general, if you just need a scientific calculator, physics, serious mathematics, economics, statistics. Do not spare the money, this is it.
1. High-quality assembly;
2.Powered by a battery, but there are also photocells on the body for powering from the rays of the sun;
3. Many useful functions, such as solving equations, inequalities, and so on;
4. There is a function of plotting charts, and with output to a smartphone;
5. There are various options for the conclusion of the results: in fractions or in decimal;
6. Built-in constant values
1. There was no instruction in Russian in the kit.
The only inconvenient moment is that, despite the rather large screen, the results are displayed in small print, please pay attention to this before buying, after the standard large calculators it is unusual. I am satisfied with the purchase, while the best functional calculator on the market. I advise you to buy.
Well assembled, high-quality plastic was used, the presence of a removable protective cover that can be attached to the bottom of the case (will not be lost), the presence of a solar battery, speed, a huge number of functions, officially approved for use on the OGE-USE (you can download the corresponding certificate of the Academy from the manufacturer's website informatization of education and a letter of confirmation of the General Director of LLC "Casio").
There is no instruction in Russian (why, if it is certified and sold in Russia?). Glides on the flat smooth surface of the desk, as the back of the case rests on four small semicircular legs made of smooth plastic (I would like rubber, then it would not slide).
Bought for the upcoming OGE and EGE in physics. For these purposes, it corresponds completely. Expensive, of course, but a three-year warranty, broad computing capabilities, a renowned manufacturer and, which was especially surprising, was assembled not in China but in Thailand (already weaned from a non-Chinese assembly of electronics). I recommend buying.
You can take this calculator for the USE and OGE in physics, chemistry and geography. Has a higher quality, clearer and more functional screen than the previous model. the device itself is light and convenient. this model has a solar battery. In my opinion, white keys on a dark background are comfortable because of the contrast. can solve both simple equations and power equations, as well as inequalities. It is not programmable. There is a sticker on the package that says "Approved for the Unified State Exam". On the manufacturer's website, you can download a certificate and a letter of confirmation that this calculator model is approved for the Unified State Exam and the OGE.
I don't see any flaws in it
At the time of writing this review, I actively use it in physics lessons. It helps a lot to save money when solving exam tasks. Already used it when writing a test exam in physics.
