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Canon F-788dx Scientific Calculator
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- 10+2-digit Scientific Calculator
- Large LCD 2-line display with contrast adjustment
- 497 functions in total including: Calculus, matrix, vector calculations
- 170 metric conversions, 20 store & 20 recall memories
- Slim line design with slide-on hard case
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Making your maths studies simpler
Whether you’re studying Applied Maths, Additional Maths, Statistics or Pure Maths, our 10+2 digit F-788dx Scientific Calculator gives you a head start. Simple to operate, it has a clear layout, distinctive key tops and a convenient cursor key that includes practical ‘Undo’ and ‘Input Recover’ functions.
Practical 2-line display
Despite its compact size, the F-788dx has a large LCD two line display. This shows both the input on the top line and the result on the bottom line, at the same time. LCD contrast adjustment ensures sharp and legible viewing of figures and algebraic signs - whether in dim or bright light surroundings.
497 functions for all your needs
An extensive 497 functions* in total cover all your requirements. Benefit from a wide range of mathematics, trigonometry and computer maths functions - as well as comprehensive statistical functions including an Integer Random number generator.
170 Metric Conversions and 79 Scientific Constants add to overall versatility. Plus there are 20 store and 20 recall memories with an independent key. Whatever the problem, get all the answers you need fast and accurately - right at your fingertips.
* see specifications for the complete list
Smart, durable, slim line design
With its smart, slim line shape the F-788dx combines a cool look with practical easy-to-hold and easy-to-use functionality. Compact and lightweight, it has a durable slide-on hard cover to protect the calculator when not in use.
The calculator switches off automatically after 7 minutes when not in use to save power. It also features memory protection when power is switched off to safeguard your work.
Canon F-788dx Scientific Calculator
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Having previously tried the Casio FX-991ES and been disappointed by the almost-deliberately obstructive implementation of some common features, I tried a Sharp EL531WB. That was only £4, which is an astonishingly low price for what is actually a pretty decent calculator, but it suffers from one or two niggles that I found off-putting enough to investigate something else.
So we come to this, the Canon F-788DX. This calculator has something of a retro look to it and is a solidly-built, quite chunky piece of kit. It surprisingly came boxed with about a dozen separate instruction sheets in assorted languages. The instructions are generally a little clearer than most.
This calculator has a number of features that I find "ticks boxes" for me: Dedicated separate Store and Recall memory buttons, the usual "ENG" button to quickly flick to engineering format, power-on and off with single keypresses, built-in constants being presented with both symbol and value, and unit conversions being menu driven in a very easy to use grouped system. Other welcome features include a "solve" function that actually works (Casio take note!), a large number of memories, recall of several previous lines of input, the usual rudimentary base-N and complex number modes, and a good selection of secondary features.
Unfortunately things go downhill from here. The display doesn't have a particularly high contrast, despite being adjustable. The decimal point symbol is very small and easily missed, not helped by the thousands-seperator (a comma) being bigger and bolder (the two can be exchanged if desired). Most modes and menus are split into groups of three instead of utilising all the keys, so it feels a little cumbersome to press MODE-MODE-MODE-3 instead of MODE-9, for example. Base-N logical operators are in an unnecessary sub-menu rather than directly available.
The thing that really ruins it for me is the way the store-to-memory operates: The calculator will re-evaluate the last-entered expression before storing it to the specified memory. This is no problem if the calculation was a series of constants. However, if the last thing you entered contained the ANSwer of the previous entry as a parameter (as happens all the time if you're working through a problem rather than entering the entire question in one go), it will calculate AGAIN before storing the (now wrong!) number. The work-around is to either specifically key ANS before pressing STOre, or to use the store operation in place of the equals key. A minor issue, you might think, but I've never encountered another calculator that doesn't imply the "ANS" before the "STO", and it drives me crazy!
In summary, a well-made calculator with some nice features, but let down by a mediocre display and some poorly thought-out behaviour.