7 replies to this topic

[jahimees]

Hello, im new here and i would like to find a new calculator for myself. As i have made a little research i have found out that Casio calculators can read even text files which i didnt know previously. I was little bit surprised. So im looking for regular calculator but it must also do this: Give me the answers in squareroots(not rounded answers like 1.45687684654, but in lets say 2(squareroot)5 and so on) if possible and needed. And also it should read text files, so i can write there some formulas, so i can check them in school while doing test:P
Sorry for my english, i hope you understand me.

[flyingfisch]

Hello jahimees and welcome to UCF! You should introduce yourself.

Your English is fine

I would recommend a couple calcuators.

Firstly, the fx9860 and PRIZM can both do square roots the way you want them done. Not sure about other calcs. I would recommend a 9860 if you are short on money, but if you have some change to spare, I would definitely go with the fx-CG PRIZM.

What are you going to be using the calc for?

[MicroPro]

Are the 9860 and Prizm capable of doing what jahimees wanted? e.g show 2*sqrt(5) instead of 4.472...?

[Forty-Two]

Are the 9860 and Prizm capable of doing what jahimees wanted? e.g show 2*sqrt(5) instead of 4.472...?

Yes, they are. By default, they are in 'math' mode which simplifies but does not output a decimal answer. Pressing 2nd->MENU(Setup) then F2 from Run-Mat mode will change it to linear mode allowing simplification. Note that scrollback for these modes is separate.

[flyingfisch]

Are the 9860 and Prizm capable of doing what jahimees wanted? e.g show 2*sqrt(5) instead of 4.472...?

Yes, they are. By default, they are in 'math' mode which simplifies but does not output a decimal answer.
[...]

Classpad can't do that?

[Forty-Two]

Classpad can't do that?

No idea

[MicroPro]

Actually ClassPad is able to do that, and the reason it can is because it has CAS built-in so it always stores expression trees and internal stuff, etc.

Now it is surprising to me to find out fx not only does simple evaluation but it parses formulas to expression trees; something that CASes do.

[flyingfisch]

Oh, ok. I didn't know that that was a cas function. Very cool.