Casio fx-991EX Classwiz for High School Students

Getling clearly knows his stuff and, although he's a little dismissive of us tightwads who haven't invested >£100 in a TI-Nspire CX, I'm pleased that he rates the FX-991EX Classwiz highly enough to have written this book.He presents clear, keystroke-by-keystroke examples for the advanced functions of this calculator. You may sometimes be left wondering precisely why you performed the exact sequence of keystrokes. The answer usually--though not always--appears within a page or so.Knowledge of the mathematics is justifiably assumed: this is not a maths tuition book. Some aspects of the statistics section left me scratching my head, so I'll be looking to refresh my knowledge thereon.All told, a very worthwhile purchase. I've saved enough time by reading this book instead of the user manual that the book has already paid for itself.

The tone of the book is quite acerbic but there are lots of useful examples on each topic including the spreadsheets that are new to this range of calculators.Also if I'd paid more attention to the odds and sods in chapter 2 that would have been helpful, as I spent some time hand calculating remainders for number theory problems. I found the chapter on matrices particularly useful as we used them a fair bit and it's very easy to make mistakes when hand calculating. The spreadsheets seems like more of a gimmick to be honest, they're pretty awkward to use and easy to mistype.I would have liked a chapter on bases including conversion/ operators.Incidentally, it's definitely toe rag not tow rag.

A great accompaniment to the calculator my son's school told us to get for his maths A Level.I'm not convinced that most maths teachers spend time explaining how capable modern calculators are, and the instruction manual that comes with the calculator is pretty perfunctory, so a more detailed step by step guide like this is super helpful in illustrating what's possible.

Bought this for my son doing GCSE maths- and he will be doing maths at a level- so bought this rather than a cheaper one and then having to buy another one when he gets to a level. So many functions and you can print out instructions for the complicated actions from the website. Very solid and good quality.

Really good except daughter is doing Further Maths and there are a couple of functions not included - inverse poisson and chi squared. Absolutely perfect for the Maths A Level though and this is the preferred calculator when these functions are not needed as its simpler to use.