CASIO fx-8200 AU - new calculator coming next year. (1 Viewer)

[tywebb]

There does seem to be an error in the calculator that my friend and I observed in both of ours when doing average titre calculations:
- Average titre calculations involve adding 3 numbers then dividing the result, leading to a fraction on the calc which needs to be converted to decimal
- When using SHIFT-exe (≈) the conversion of the fraction to decimal was wildly wrong
- However, when using the FORMAT button, the conversion was right.

Is there something else at play here?

What was the calculation?

 

[wowza9995atar]

Ok never mind after thinking about it, it's not an 'error' but it isn't exactly intuitive

We put something like 29.70 + 29.60 + 29.65 in, pressed execute, then divided by 3 to get the average titre in FRACTION form. Then, mistakenly, we pressed the ≈ button (which executed the division by 3 again - getting the wrong answer).

The FORMAT button doesn't execute the division again. This means the two buttons don't have the same function as each other.

You could just do the addition and division in the same step to avoid this, but it's annoying that it works this way

 

[carrotsss]

Ok never mind after thinking about it, it's not an 'error' but it isn't exactly intuitive

We put something like 29.70 + 29.60 + 29.65 in, pressed execute, then divided by 3 to get the average titre in FRACTION form. Then, mistakenly, we pressed the ≈ button (which executed the division by 3 again - getting the wrong answer).

The FORMAT button doesn't execute the division again. This means the two buttons don't have the same function as each other.

You could just do the addition and division in the same step to avoid this, but it's annoying that it works this way

You can do them in seperate steps you just have to shift click equals the first time instead of clicking it normally

 

[tywebb]

So my understanding is you want to do



yeah?

So with FORMAT button you can see


Then press FORMAT button, choose Decimal and press EXE and it changes to



With the other method after typing in this:


Now press SHIFT EXE and you get

So yeah, no error there.

 

[tywebb]

There is a new resource for the fx-8200 AU

Kissane, Barry (2023) Scientific calculators and irrational numbers. Australian Mathematics Education Journal, 5(1), 4-9.

attached

There were some limitations for fx-8200 AU in exact values in the Kissane article like



However I discovered the ClassPad app can do it:

 

[tywebb]

Method 1 with a real calculator

If you already have the real calculator you can press the [HOME] [SETTINGS] buttons on the calculator to get the Calculator ID. This entitles you to get a free license which lasts 7 years.

There is a new rumour that the 7 years will be reduced to 4. But if you check the expiration of the licence it is still currently 7. I don't know if or when the change will occur. It might be wrong. But I heard it from a Casio employee so it might be true.

 

[LookingGood2]

There is a new rumour that the 7 years will be reduced to 4. But if you check the expiration of the licence it is still currently 7. I don't know if or when the change will occur. It might be wrong. But I heard it from a Casio employee so it might be true.

That's interesting, but can't figure why the Casio employee would say that, with why the reduction would help Casio's reputation.

I can't remember, but believe the FX-82AU Plus 2nd Edition and the FX-100AU Plus 2nd Edition might only have been out about 3 or 4 years.

Probably from next year the new lot of Year 7 students might be moving onto using the fx-8200 AU, instead of the current most schools favourite of FX-82AU Plus 2nd Edition.

It'd be Casio looking to shoot themselves in the foot, if say in 2026, a Year 7 students buys a FX-8200 AU, learns of the emulator and 4 years later, just as they start year 12 that the license has expired.

Maybe Casio are planning on an updated model to the FX-8200 AU to come out in 4 years time. Like a 2nd edition for that.

NSW is the only State/Territory that I know of in Australia which does not allow for Graphic Display Calculators for Year 11 and 12 maths at equivalent to Standard or Advanced and higher. I haven't recently checked when the current HSC Syllabuses are accredited to, but it's more likely than not that NESA will go the route of all the other States and Territories. Then of course having a reduced 4 year license on the FX-8200 AU won't matter for Year 7 students buying a FX-8200 AU.

 

[Edward34245]

I don't think that will be a benefit. You should be able to swap things like that on the same calculator, just as it was on other calculators.

I am a year 12 student and it is a HUGE benefit. Couldnt disagree more.

Moderator note: Please be respectful to others when responding to posts/threads.

 

[kendricklamarlover101]

I am a year 12 student and it is a HUGE benefit. Couldnt disagree more. You are an idiot

real men go into the exam with no calculator and use taylor series approximations

 

[tywebb]

newly added to emulator

physically here is one of them - solar powered, gold shift functions!

that's MUCH BETTER!

Now we just need nCr and nPr buttons on front, not hidden in menu

 

[tywebb]

notice too that the black and white on the buttons in the new japanese one are inverted which is also better

 

[tywebb]

i worked out how to change language to english in the new japanese one (fx-JP900CW)

so to start it looks like this:



highlighted one is calculate

OK Settings V OK V V OK OK HOME

and then you see this

 

[tywebb]

so why would you want to anyway - well it does this: unit circle


exact values too

 

[tywebb]

I made a photo of the prototype I've been using the last couple of days:

View attachment 36362

I think blue Shift functions is a terrible colour on a black background. Yellow or white would have been better.

What do you think?

this thread started 2 years ago when some japanese guys came to tweed heads to show the prototype of the fx-8200 AU 9 months before it was released.

well they're back with another prototype of the new fx-1 AU to be released July 2025.

today i got to use it and made a photo of it:

there are only 2 working prototypes - in the whole world! - and this is one of them

they have a page on it here: https://casioeducation.com.au/fx-1au-graph-calculator/

 

[coolcat6778]

this thread started 2 years ago when some japanese guys came to tweed heads to show the prototype of the fx-8200 AU 9 months before it was released.

well they're back with another prototype of the new fx-1 AU to be released July 2025.

today i got to use it and made a photo of it:
View attachment 44392
there are only 2 working prototypes - in the whole world! - and this is one of them

they have a page on it here: https://casioeducation.com.au/fx-1au-graph-calculator/

Looks hideous. the fx82 au is the best calculator. Also what genius decided you need to press shift to access ln