Comparison: Casio fx-991EX Classwiz Vs Sharp EL-W516T

Comparison:  Casio fx-991EX Classwiz Vs Sharp EL-W516T

Reviews

Casio fx-991EX Classwiz (November 1, 2015):
http://edspi31415.blogspot.com/2015/11/casio-fx-991ex-classwiz-review.html


Sharp EL-W516T (July 14, 2017):
http://edspi31415.blogspot.com/2017/07/review-sharp-el-w516t.html

Pictures

Sharp EL-W516T on the left, Casio fx-991EX Classwiz on the right

Comparison Table

Per suggestion from one of my readers of my blog, I am doing a comparison of the two calculators and giving you my thoughts. I am thankful for the suggestion.

  

Remarks

Sharp EL-W516T: Calculations are kept in history when the calculator is turned off, as long as you don't leave the Normal (Home) Mode.

Casio fx-991EX: You can plot graphs with the CASIO EDU+ app with the QR feature when a table or statistics table are generated. This is just the surface of what the QR can do.

A nice feature of the EL-W516T is the recurring decimal feature. For example, calculate 8/11 and press the [CHANGE] button. One of the representations is the 0.72 with the bar above 72 to represent 0.7272727272727272... . You can have the recurring decimal representation turned on or off.

My personal preference is to have the hyperbolic functions on the keyboard and not buried in the menu. The EL-W516T has the [hyp] key, while the fx-991EX has the hyperbolic functions stored in a menu ([OPTN], 1).

On the other hand, the fx-991EX has angle symbols ( ° for degrees, r for radians, g for grads) that allow you to enter angles in any measure without having to change angle mode. ([OPTN], 2).

I tend to trust the Casio fx-991EX when it comes to complex calculus calculations. If there are long calculations, it's a good idea to break it down into steps and check the answers along the way.

Even when the Spreadsheet does not have labels, it is useful for calculations. I find it to be a plus that the fx-991EX offers. Don't the spreadsheet to replace Excel, LibreOffice Calc, or even the Spreadsheet of the fx-9860gii or fx-CG 50, though.

The Sharp EL-W16T has a larger font when entering matrices and equation prompts. The trade off is that the EL-W516T has a lower resolution screen, while the fx-991EX has a sharper resolution, with a wider range of contrasts settings.

The EL-W516T has three keys to store functions and commands. I wish they kept the function memory as Sharp had with its previous incarnations. Still a nice thing to have.

The EL-W516T wins in keyboard and font contrast. The base conversations (blue), the imaginary label (purple), and the alpha markings (red) on the fx-991EX can be hard to read in some lighting conditions. The EL-W516T has better contrast in font colors: green, gray, gold, and white. Even though I kind of like the design of the fx-991EX's plate (with it's texture), the EL-W516T's plate is solid and makes it for a cleaner experience.

Personally, I find myself using the fx-991EX more, but I consider using the EL-W516T more. When it comes down to features, both calculators are solid choices.  

Eddie

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