- #1

- 12

- 0

For higher mathematics i need the highest featured calculator and since graphing calculators are generally expensive (at least for me) so that's why I'm investing some time in researching Online b4 I buy so that i can shell money only once to buy a graphing calculator which is so powerful in the built-in functions and other features:

I am interested in one of the following models but confused to which one i should go with:

1) Casio Algebra FX 2.0 PLUS

2) Casio FX-9860G

3) HP 50g

------------------------------------------

Questions:

1) Regarding 1) and 2). Which of these are more up to date (regarding functionality) than the other?

2) On the Algebra FX 2.0 Plus page, they say that there is a Backup-One lithium battery(CR2032) so does that mean its role is just to protect the memory while I'm swapping the 4 AAA sized batteries or it's role is to supply power with the 4 AAA batteries ?

3) What's the role of the SD card in the SD model of Casio FX-9860G

Waiting for any feedback and Thanks in advance