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Scientific calculator easy to use engineering student light weight built quality past 3 years best price good calculator calculator ever fx-991es plus casio fx-best one for engineering within 2 days best calculator value for money best scientific equation solving lots of features nice calculator ever seen.
Fx-991ES (Natural Display) The Casio fx-991ES is a scientific calculator with 8 digits precision and formula input logic. It has 403 functions, 50 keys, and an LCD (liquid crystal) display. The power source is Solar. The calculator was manufactured in China. Note: Functionally the same as fx-570ES with solar power Facts at a glance: Feature Value Type: Scientific Functions: 403 Keys: 50 Precision: 8 Logic: Formula Display type: LCD Length: 161mm Width: 80mm Thickness: 12mm Weight: 105g Power Source: Solar Country: China Year introduced: 2005 See.
![Casio Fx 991es Calculator Casio Fx 991es Calculator](/uploads/1/2/5/3/125352200/880536673.jpg)
Product Information. Easily compute the most complex of mathematical problems, equations, and scientific formulae with the Casio FX-991ES Plus scientific calculator. The Casio 991ES calculator works with a dual power source, the primary being a built-in solar power cell that keeps it running for hours without any batteries. Moreover, with batteries installed, you can safely use it for weeks together without worrying of replacing them. You can practice all sorts of mathematical problems that appear at the GCSE, A Levels and above, with this Casio FX-991ES Plus scientific calculator. The Casio 991ES calculator resolves complex calculations, integrations, and logarithms in just a few steps. Easy to Use I bought this calculator because it was the best allowed for use on my exams (best in terms of its features and capablities).
The 'pretty print' font feature is great too. It can even perform integration and differentiation of a function at a specific value of the independent variable (or over a specified nonvariable range. Unfortunately, it can't produce the function that is the derivative, etc. Of a given function like the TI89 (but then if it could it probably wouldn't be allowed on your exam anyhow). Anyway, this thing is pretty decent for calculus and physics - for stats, use a TI83 instead if you can. It is more than adaquate for business types and decent for science students too assuming your professor is against more advanced models.
Engineers already know they'll be needing a bit more power. Hope this helps you make an informed purchase decision.