Last Updated: November 24, 2018 (Refresh Now)
Casio FX 991EX Engineering Scientific Calculator Black
Last Updated: November 24, 2018 (Refresh Now)
8.5
SCORE
/10
Total Reviews
135
Old Reviews
39
Unverified
5
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Review Analysis - 91 recent, verified reviews
Detailed Mode
Controls
13calculator, intuitive, shift, quality, optn
+62%
-38%
" ... I love the aesthetic and display of this calculator, and the buttons feel really high-quality. ... "
" ... -Buttons, the buttons feel nice and have and give a very responsive feedback. ... Unlike other calculators, I've miss-pressed fewer buttons. ... Some how the design of the buttons is layout is very intuitive. ... "
" ... All program functions including the buttons work great. ... "
" ... Very easy to use and the most commonly used keys are accessible. ... "
" ... Besides the exact answer capability, this is a basic calculator that does not handle complex numbers. ... "
" ... I am very pleased with the button feel and ease of use. ... This calculator even has some matrix functions. ... "
Ease of Use
12easy to use, easy, calculator, use, model
+100%
" ... I needed a scientific calculator for my exams and couldn’t use a programmable one. ... "
" ... It is easy to use and the vector setting is a huge time saver if you do lots with vectors like I do as an engineering student. ... "
" ... Some how the design of the buttons is layout is very intuitive. ... "
" ... Very easy to use and the most commonly used keys are accessible. ... "
" ... Much easier to use constants and conversions ... "
" ... Love everything about it but some new ordering of menus makes it actually longer to get to some places compared to the older model. ... "
" ... It was well packaged and very easy to understand. ... "
" ... Manage of gather data, tables or matrix is very easy and intuitive. ... "
Display Clarity
11screen, see, resolution screen, read, higher
+91%
-9%
" ... On this calculator, you can type in the entire expression and it still appears neatly on the display. ... "
" ... -High-resolution screen, the characters are clearer. ... I can usually see the entire equation on the screen which is really useful in avoiding mistakes. ... "
" ... Multi-line display is great, as are the setup options. ... "
" ... I had previously owned the FX-115ES Plus, with the natural textbook display, and really appreciated the intuitive design and the ease of use. ... "
" ... Higher resolution LCD easier to see and crisper ... "
" ... The display is amazing and the amount of functions it has is stellar. ... "
" ... Read up and watched a bunch of videos on Casios website and was please to see it was a higher resolution screen compared to most of the NCEES approved calculators. ... Definitely helps to have the extra digits on the screen. ... "
" ... The display is easy to read. ... "
For Kids
10students, student, school, loves, every
+100%
" ... Probably the best investment I've made so far for school. ... "
" ... I purchased it for my daughter and she loves it ... "
" ... Must get for every engineering student!! ... "
" ... My kids abandoned their old calculators (which were prior versions of the same model) for this in a heartbeat. ... "
" ... I am a telecomunications/electronic engineering student. ... "
" ... My daughter and son loves them (I bought 2)! ... "
" ... The kids love this calculator! ... I give calculators to my top math kids every quarter and this is a favorite! ... "
" ... This one can halp to close educational gaps around the world and Ido think that any middle & high school students shuld have it. ... "
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Specifications
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