C2 --&gt; which calculators are allowed?

Get an 85ES and mod it to be a 991ES :wink:

Reply 42

EvenStevens

Get an 85ES and mod it to be a 991ES :wink:

I would, but the problem lies therein...
How do you mod a calculator, and what does that even mean? :redface:

Reply 43

allyourbase

rahulsood

I tried, but he slated me for 'being a muppet' :frown:

How annoying for you :mad:

Reply 44

On certain 85ES and 83ESs, you can "colour in" one of the jumpers on the circuit board with a pencil, which tricks the calculator into being something else.

See, the 991ES and 85ES and 83ES use the same circuit board to save Casio money on production.

Reply 45

allyourbase

How annoying for you :mad:

Indeed

, although I can't blame anybody but myself :redface:

Hope this doesn't ruin my chances for Oxford though (as they were already pretty weak in my opinion). Lol surely at Interview (if i get there!) 'why did you do so badly in M1'...'My calculator was confiscated' will hardly look pleasing, or present me in the right light, because no doubt it'll seem like my own fault :frown:

Enough of me moping though!

Reply 46

EvenStevens

Your so very smart.
Although I still have no idea what that means =\

Reply 47

Well, if you unscrew the back of an 83 or 85ES, you'll see something that looks like...

See those little silvery gold circles all over the board? One of them you colour in with a lead pencil and it'll fool it into thinking it's a 991ES.

I'm not sure HOW it works, electronics aren't my strong point, but it does :P

Reply 48

EvenStevens

Well, if you unscrew the back of an 83 or 85ES, you'll see something that looks like...

Thanx mate :smile:

can you colour in ANY one of them? :p:

Reply 49

Oh, no XD

I don't know if you can see, I've highlighted the one you need to colour in with a red circle.
It's above CMODE and to the right of P4.

Though, careful, this mod only works if your calculator is type A, or as no type at all.

Look on the back of your calculator and tell me what it says above the words "MADE IN CHINA"...

Reply 50

EvenStevens

oh ya! thanx :biggrin:

I don't actually have one of them atm, still using my other calculator :p:

Reply 51

ofolion

How can you modify a 83ES to being a 991ES; It won't work properly anyway because some of the buttons will be missing, or at least mislabelled which would be really confusing.

Reply 52

Yeah that's the downside. But most of the buttons are in the same place.

Reply 53

My mate took a calculator that does integration and differentiation on it... In fact it does pretty much every maths calculation possible! (Well, it doesn't find a counter example to Fermat's Last theorem... :rolleyes:

) Anyway, I guess it just depends on which school/college you go to! (P.S. Yes I still envy my friend for having that calculator in the exam... He got the differentiation calculation correct when I didn't lol)

Reply 54

EvenStevens

It's like Where's Wally? Google it lol

Reply 55

rahulsood

I tried, but he slated me for 'being a muppet' :frown:

Did you leave everything in sin/cos/tan, etc form? I am asking this because you would still get like 80+% for doing so! Obviously this is providing you got everything right...

Reply 56

Mathematician!

Did you leave everything in sin/cos/tan, etc form? I am asking this because you would still get like 80+% for doing so! Obviously this is providing you got everything right...

Yeah left it however much I could mentally calculate,
but managed to fill out most of them quickly when I got the calculator at the end. And nope, doubt I got anywhere near everything correct! :frown:

lol

Reply 57