Originally Posted by

**bobak** No they are not that great, I got mine for free and gave it up. My graph drawing is pretty accurate without a calculator, as far as I know the TI- series cannot graph implicit equations. As far as examination go, they are difficult to use and you can easily waste a lot of time operating it (time away form doing your exam questions). and all serious math exam in the UK bar use of any calculators (BMO , AEA and STEP).

On the other hand there some models are allowed in the less important A-Level maths examinations in the UK. If you want to get a B grade in british A Level math without doing any work, just buy a TI-83, it will do all the stats for you, you can check your integrals and graphs and such.

I have never found calculator particularly useful at all for studying math, for graph drawing I always find that using my computer is a lot more convenient. I haven't started my math degree yet (will do in October either at Cambridge or Imperial) so I don't know how extensively calculators are use at university, but for the work I have done so far I wouldn't recommend spending more than £10 on a calculator.

Bobak