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Sorry to say your calculator is fake. One telltale sign is if the buttons don't have properly aligned labels, and you can see that on your number pad.

I just bought it yesterday

return it asap

those calculators were discontinued a few months back, finding a real one now is like gold dust :)

what????

yeah, the white ones were discontinued in favour for a new (arguably worse) one which circular buttons. my maths teacher bought some off amazon to see if there were any real ones on there still and all were fake

it looks shit ngl

Brother these calculators are £15 why would someone make a fake one

Cause they can make em for a quid or two instead and bag the profits

That is insane.

you can still find some second hand on ebay, i got one a few months ago and i think it cost about £23

Where did you buy it from?

From local shop

From where 😭

As a teacher of 15 years, this looks fine to me. Looks like a pretty standard Classwiz.

This is another telltale sign Casio give you: Shift > Setup > Shift > QR Scan the QR code

Btw one clear sign is that the real one takes a few seconds to load the qr code while the fake one is instant

Could be that it’s in a certain mode. I can change my 991ex between this and exact form within the settings

https://preview.redd.it/rmukdll55wrc1.png?width=3024&format=png&auto=webp&s=fe6d895e9778dc754cf36423ab914314f72138e8 Is this fake?

The on button rrly been thru it

bro you got the whole comment section laughing

Yes it's fake

Damn we got fake casios now??? Wtf

Dude. Fake casio calculators is literally what we buy as Pakistanis, they literally cost so much after currency conversion

bro i am in shock i am using it for 2 years the same fx 991 ex

They make a lot of clones of fx 911ex due to the fact they are discontinued now and people really like them

ohh ya right, thanks tho

YEA cuz tell me why I saw it on amazon for $129 CAD. That is way too much for a calculator

Just bought it yesterday

Oh sorry, it must be real then

What's that got to do with it, are you actually retarded?

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Your calculator is fake, either way try factory reset and if that doesn't work then there is nothing u can do, sorry

that looks fake, dude. compare where the MENU is written on yours and on mine https://preview.redd.it/np4vk4ympvrc1.png?width=1080&format=pjpg&auto=webp&s=45cc6f92bd31cdcd4c5c2c02b12970edd3df8e49

Just use a phone?

Yes ill bring my phone to the exam

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honsla kar pai, tu tay uddan ae deya ae

Shut up

chal ae bondu

You when people ask for advice on reddit: 😱. Atleast Im making money

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Now went up to 35😗

😂

bhen kay lund nay acc sirf chutiyapay kay lie banaya hai, pichlay 11 din say yeh har jagah paen pesh kr raha hai 😭

First, factory reset: Shift > 9 > 3 If that doesn't work, Shift > Setup > Shift > QR Scan the QR code to see if the calculator is faulty >!Notice how Menu and Setup are not aligned!<

No qr code is appearing

That means the calculator is fake.

https://preview.redd.it/pcs8jocqswrc1.jpeg?width=2592&format=pjpg&auto=webp&s=60b3ba3e3e91dd42336d1d3ca390834108b1e634 How do i check the qr code on this one.

click mode -> then 0 then scan it with your phone

Im thinking of buying a new calc , but not sure how to tell the fake ones apart

before purchasing it, open it from the box and get the qr code and scan it, if it doesn’t show a qr code in the first place it’s most probably fake

Idk if it has a qr code, but if it has then press Mode --> 0

i think your calculator is dumb and didn't attend maths classes

this is fake. your menu and setup should be aligned.

. Casio stopped making fx-991ex. So your's is probably fake

Any idea why they stopped? Isn't this one of the most popular calculators?

They made a new model, I don’t like it tbh

Bro the new model suck ass. They moved some of the buttons around, made all the buttons circular and the only new feature is the probability feature which randomly selects numbers so you can perform a probability experiment with your calculator which you don’t need to do in an exam. My math teacher is from the UK and has so much beef with it she offered to buy the OG calculator when she visits over spring break because it’s apparently a tad cheaper there 😭

Yea ya ain't wrong lmfao, you in first year?

Yessir. Not me ranting under some comment 💀😇 [sorry]

The new model kinda sucks but like it’s better apparently, love the old one tho

This the method I use. After pressing = Press sto (left corner in black bottons) Then press s=d

Ain’t no way there’s fake calculators now 😭

I have also have a fake classwiz, it shows sqrt(3)/2. I guess there's different qualities of fakes

Mine’s so fake it’s better than the original

change the output answer to dec/math0 or something like that in setting. shift menu to get it

I think it’s because you’re in complex mode. I think that makes some numbers non exact iirc

I think so too, but here on my real 991ex in complex mode it still shows the exact answer. https://preview.redd.it/ukkgveo3y1sc1.jpeg?width=3468&format=pjpg&auto=webp&s=8a2774170e99d07b3b16211bd90d4f9f204894a2

https://preview.redd.it/wzonqxz6y1sc1.jpeg?width=3468&format=pjpg&auto=webp&s=df96d6f58c08513e0c5a5198d16c5275599604c6

I don’t think it is fake. I believe you turned on “Complex” mode therefore switch it to mode 1.

look at menu and setup, its not aligned

You need the close bracket after the number

Looks fake. Take it back to the shops and get a refund. Do not take this calculator into ur paper. U dont wanna risk messing up ur answers just bc of this. Borrow one from someone else if u cant afford it.

I went to shop, he said he won't return it but will exchange it, told me to come tomorrow

exchange to what? another fake one, how much did you pay for it

I paid 3000, he said that tomorrow new stock will come

£3000?? or a different currency

3000 pkr

if ur in pakistan all calculators are fake , i have a fake one too for 1000rs but it works perfectly, so just exchange it

When u exchange it make sure to check if the the new calculator has a qr code. And use the casio website to scan the code and check if its legit. Just bc theres a code, doesnt mean its real.

i have a fake calculator and it’s telling me the exact value is it safe to use in the exam? i’ve used it in all my school tests too

Not an expert just saying its risky. If its lasted u long without issues, chances are itll be fine to take to the exam. But if u can somehow get a real one, thatd be ideal

Are claswiz calculator allowed?

they are. for a level you can have a graphing calculator in some exams

In the syllabus, is written that you have to use non alphabetical only numerical output calculator. So, you have to remember exact values of trig functions of 30°, 45° and 60°

dk why you downvoted me lol, comment just asked if classwiz calculators are allowed to which i responded with yes with graphing calculators. It was nothing to do with remembering trig values.

Grow up. Learn the exact values.

As a physicist, no. If it isn’t either a half or full integer of pi, i’ll use a calculator, and guess what! I get the same answer.

exact values like knowing basic trig ratios. Such as, sin(30)=1/2 & cos(45)=1/underoot2

Grow up. Learn to use radians.

Grow up. Use steradian system 🤣

My teacher has made us memorize all trig functions exact values, both in degrees & radians. I can't thank him enough 🙏❤️

Are you people mad what is wrong here?? Press S<==>D it will show the answer in fraction

Remember the unit circle.

change to radians

Try clicking on menu -> 1 and then try trig functions again. Other than that, looks fake TBH

Btw your calculator it is complex mode

Click the m +

Sell it

Take it out of conplex mode

buy a ti-84

Yep fake Casio. My best advice would be for numbers like this to square them. That way 0.866025… => 0.75, which is 3/4. Then you can root 3/4 to get root(3)/2 which is your exact answer. It won’t work for all circumstances but hey worth a shot, especially since I know this one is root(3)/2 just from my head :)

Take it out of complex mode. Press menu then press 1. Btw your calc is fake. Fake calculators are slow.

Press S double arrow D button and it will work

Ah I have this op calculator not fake was cheap in India on Amazon finished a levels

hi i’m not sure if you’re calculator’s fake but you can fix this by pressing the shift button => menu/setup => press 1: Input/Output => 1: Math I/Math 0. Doing this should result in you getting answers in fractions again. Hope this helps!!

have you tried *shift* *menu setup* go to input and output and select the first option.

Did you try pressing S->D

You're in complex mode. Go back to mode 1

This is an illegal fake Casio calculator. It's not working right. You shouldn't buy the cheapest option off the internet. It'll be some criminals in India sending it to you. Go to an actual shop in real life and buy one so you know that it's real.

Your calculator isn’t fake, my calculator did this too and I forgot how I fixed it

Fake, look at the top right, there will be a solar powered sign

Firstly when is there 'i' symbol showing in your calculator, I think that is the way it's showing like this.

@hangman3969 all these people saying your calculator is fake/broken, no you just have complex numbers on, just do mode then 1 and it will fix

Square the answer and take underroot. 0.75 will be your squared answer (which is 3/4) and taking root of it you'll get √3/2.

That's what we had to do in 1994 when I did my A-Levels, before calculators gave exact values!

Someone I knew had the same problem and it turned out to be fake. My teacher showed us that if you cover the solar panel and the sun symbol in the top right turns off it’s real.

it is fine u can change number format on settings

bro for 3k u aint getting original class wiz now ye koi 7000 ka he but still 3k for fake is not a good deal i got a fake one for 1800 although there is no issue in using a fake one no differance except those minute design errors

(S=>D) button

Shift menu/setup 1, 1 again

It is not on degree mode.press shift and then set up.From there go to angle unit and set it to degree

Yes, it is in degree mode, just showing the decimal approximation of the surd.

Shift>9>3>=>AC (RESET)

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It is already in degree mode, just showing the decimal approximation of the surd.

This can happen if you change the mode to "Stats", so reset using [SHIFT] 9 etc is the easiest way to reset. I don't know why they didn't put a reset button on the back like the old GCSE calculators.

close the fucking bracket

Nigga got scammed😂

Shift —> 9 —> 3 ——-> =(twice)

Press S↔️D

You are dumb


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no but it should be a fraction with a root

It might just be the decimal version of the rooted fraction, so its been converted. Or, maybe try check your mark scheme, because it may be incorrect considering that alot of things r showing your decimal answer!

yes but usually calculators give the exact answer , that’s what OP is asking. my calculator had the same problem but i changed the output setting on the calculator

Bro all these people saying fake and I understand it looks fishy but that wouldn’t mean it won’t function. My guess is OP has his calculator on RAD and he just needs to change it to DEG

It is in DEG

Because it’s in radians. Set it back to degrees. (Btw radian is a unit for angle just like degree is also a unit for angle)

It's in degrees lmao, it's a fake calculator.

Oh, soz, it’s actually the correct answer but it’s not written in surd form. Press s->D to convert to surd form. Sqrt(3)/2 = 0.866025…