Casio FX-9860GII SD Power Graphic Calculator

Brought for my son, easy to use

Didn't get the SD model with memory expansion as ordered but calculator performs well. Extensive table, statistics, n simple graphing capabilities at a fraction of the TI price. Improved over the fx7820

Excelente producto

Good product, accurate description and timely delivery. Excellent Customer Service. Thank you!!!

Bueno

Solves complex matrices. Enough said.

GOOD

Exactly what I need

THE GRAPH 95 IS ALMOST IDENTICAL BUT COSTS ABOUT £60 FROM AMAZON. FR, WHILST THE SITE WITH FOUR LETTER IN FRANCE, SOMETIMES SELLS IT FOR £53 NEW, DELIVERED TO THE UK. CASIO UK ARE ROBBING US!!Here in the UK, the non-SD model often sells for up to £75 less. The high price demanded by UK traders for the SD model, can only be justified on the grounds of Casio's failure to provide more than 1.5MB internal memory, in their non-SD version - hardly a good recommendation! In terms of specification, the TI Nspire CX CAS, leaves it for dead, yet new, older versions of it cost about the same!Three stars, because although overpriced, it has a lot going for it. In taking SD or SDXC cards, the problem of too little memory, experienced by those wishing to store data via the document (e-ACT) or spreadsheet (S-SHT) modes, and add lots of apps and programmes, is completely overcome in a large way. A 2GB SD card boosts the memory 1035 times, but even 64GB cards can be used ! This allows you to add as many apps, programmes, documents and spreadsheets as you like, and back up all data, including the calculator's operating system software, to card rather than p.c. Do bear in mind, however, that 1.5MB internal memory of the non-SD version will be sufficient for those just wanting to add a few of these.The operating system of the fx9860GII is exemplary - there is no better! It's so simple to use that anyone from a maths or i.t. background would get away without needing a manual. Every function is exactly where you'd expect it to be, and the syntax for specialized commands can often be deduced based on commonsense. Anyone finding it difficult would be wise not to pursue a career in maths or a math-related discipline!The calculator is fully programmable using a language similar to BASIC. You have the full range of commands you'd expect (loops, if statements, goto, etc , plus subroutine commands for virtually every specialized feature) and a comprehensive set of alphanumeric characters, including just about every mathematical symbol you can think of. You can therefore write your own software to cover anything within reason, not already built-in to the operating system.Other plus points include an excellent key pad; a large, high-contrast LCD display, nicely recessed for protection, and amazing battery life from 4, AAA batteries. It is also very robust - drop it on to concrete pavements and you won't end up with a cracked screen in need of replacement!Apps are available from Casio, and third parties, free-of-charge, and these extent the capabilities substantially. Downloaded and installed via FA124 software (also free) on a Windows' p.c., they are then selectable from the main menu in the same way as those already present.FA124 works on a 'drag and drop' principle: calculator storage area on the left; computer storage area on the right. You can easily transfer a programme or app by dragging it from one side to the other. Another handy feature is that if an app or programme is dragged outside the edge of the window to your Desktop, it turns into file, ready to be emailed. Exchanging apps and programmes with anyone round the world, is therefore a doddle! Furthermore, FA124 creates a folder called CASIO, in Documents. This has two data files: one for apps, one for everything else. The two together seldom come to more than 10MB, and can easily be emailed, giving the recipient a rapid means of installing everything you've got on your calculator. All they need do is set up FA124 on a p.c. and replace their CASIO folder, with yours.The c.a.s. app Algebra (see photo), gives the full derivative of a function in terms of x, not just the numerical value. It also expands algebraic bracketed expressions - even those with complex numbers raised to a positive integer power. It also gives the quotient in polynomial division and, to a very limited extent, copes with indefinite integration.Similar to Algebra, but not as powerful, is CAS. It is, however, even better at differentiation, and doesn't cause the calculator to crash, as does Algebra, if it can't perform the task. Like Algebra, it's free-of-charge.Whilst these apps are highly useful and well worth having, they don't by any means, match the full capabilities of a proper c.a.s. calculator like the TI 89 or TI NSpire CX CAS. Unfortunately, however, c.a.s. calculators are usually banned in GCE or IB maths exams.Software exists to allow you to convert documents in plain text (file extension .txt) to files that can be installed via FA124, and opened up in the calculator's e-ACT mode. Unfortunately, this third-party software doesn't work well. Anything converted, but not recognized by the calculator's operating system, wil cause the calculator to crash at that point in the document. This can lead to a build up of registry errors, which can cause the calculator to malfunction. Fortunately, a memory reset, taking less than 30 seconds, fixes the problem. To get this software, you need to visit a well-known website, catering for Casio and TI, in French, called tiplanet. Here you'll find a wealth of programmes and apps, including Algebra, CAS, FA124 and much more.This calculator, is allowed for use in GCE exams like GCSE and A-Level, and also allowed for use in the IB exam. It features a very useful Exam Mode, designed to lock you out of every banned facility when sitting the IB exam, for 12 hours, unless deactivated by a similar calculator or p.,c. This means you don't have to delete all apps and programmes before sitting the exam. Officially, Exam Mode is not recognized for use in GCE exams (welcome to Great Britain!) but unofficially, you should be fine using it as an alternative to deleting apps and stored data, or transferring them to p.c. via FA124.With every statistical function you're likely to need (including 2-sample t-tests, Chi-squared tests and ANOVA) plus matrices, vectors, definite integration, differentiation, and the ability to plot graphs based on equations in Cartesian, parametric or polar form, this is a very capable tool, easily up to the task of helping students get through A-Level or IB. Particularly useful, and worth mentioning, is the SolveN command. It lets you solve virtually any single variable equation, as presented, including complicated trig equations with multiple angles and trig functions raised to a power; often giving exact answers as multiples of pi. It even solves probability equations based on the Normal distribution.At £85 , I'd give it five out of five stars, but at £150 it's ridiculously overpriced, hence three out of five. Good though it is, the fx9860GII Power Graphic 2, dates back to 2011. With its lack of colour graphics, and no 3D graphing capability, it's beginning to show its age. The fx9750GII can easily be uprated, to run the fx9860GII operating system software; yet new sells for only £62 - sometimes less. Admittedly, the LCD panel is smaller, and it's less robust, but it then offers the same functions! Even the fx9750GII has now had its day, from the French consumer's perspective, as Casio France have launched the Graph 35+ EII, which sells on Amazon.fr for about 63 Euros. It has a natural display as standard; is Python programmable.The Graph 90+ is currently available from Amazon.fr for only 77 Euros, and is virtually identical to the Casio FXCG50 being offered for sale here in the UK at over £100. Yet again, the UK consumer is being scammed!WARNINGIf buying from France, you do need to check whether what's advertised for sale is old stock with the older processor (sometimes designated SH3). The second photograph uploaded shows one of these for sale new, with the older processor. To ascertain this, ask what o.s. version is installed. If it ends in 00, it's the older processor (e.g. 02-04-0200). If it ends in 01, it's the newer one (e.g. 02-04-0201).There's nothing bad about the older processor; in fact it can run the c.a.s. app Symbolix, which the newer (SH4) processor can't. It does, however, mean you can't run the latest IB compliant operating system software (02-09-0201). You're stuck with 02-04-0200, and Casio will not be doing any further upgrades for it. That said, other than ECON3 over ECON2 and a 3-segment battery monitor, there's no discernable differences; both offer the same functions. On paper, the SH4 processor is a lot faster, but in reality, there's no difference in use - even with lengthy programmes! Whichever version you buy: no 3D graphics, colour display or Fourier analysis!

Second one I have bought as I left the first one on a train! Easy to use, clear screen with backlight if needed. Using with my BSc Mathematics course. Good quality. Recommended.

The product looked bitten up and tired of being used.

The Casio FX-9860GII SD is hands down, one of the best graphical calculators of all time. There are over 2000+ functions plus an addition of being able to add your own programs and notes (through eAct) and its generally amazing.My unit came with one flaw though, (small but noticable) the 'REPLAY' D-Pad's right click is slightly mushy whilst the others are pretty clicky. Weird but bareable. Any chance the seller could do something?

I gave this as a present to a six form student who is still using it at uni! He says it's the best present ever!