Casio FX-115ES Advanced Scientific Calculator with 2-Line Natural Textbook Display Review

Average Reviews:

(More customer reviews)I bought this calculator's distant ancestor six or seven years ago in College and loved it ever since.The old model was the first calc that gave you graphing calculator editing capabilities in a small calc package and it was a steal for the $12 or $14 I paid for it then.This new generation is nothing short of a quantum leap forward.For the first time you can enter equations exactly as you would write them.The font switches to a smaller size, so you can review the whole equation at once.It also has a solver funtion that is intuitive and quick; I used it all the time on open channel flow problems, or any equation that would require more than mild rearranging of terms.This may be the only calc on the PE approved list that has this ability.

Other high points:
* excellent battery life and solar ability
* Table function

Minor quibbles:
*you may have to slow down the pace when keying in as it will miss keystrokes if you type too fast
* you have to hit Shift to get to 'X' (alpha) or Pi
* when editing an equation, very slow to cursor to where you want

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Product Description:
The Casio FX-115ES Advanced Scientific Calculator features over 279 functions and provides its user with everything they need for most mathematical calculations. The calculator's functions include complex number calculations, matrix and vector calculations, statistics, and 40 metric conversions. Its standout feature is its 2-line natural textbook display that displays fractions, formulas, square roots and other expressions as they would in your textbook. It is extremely versatile, and can be used in courses ranging from basic pre-algebra to calculus, and also has applications in physics, engineering, biology and statistics.
What's in the Box
FX-115ES scientific calculator, slide-on hard case, instruction manual, and quick reference guide.

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