I haven't had to use the quadratic formula since purchasing the new Casio ClassWiz FX-991EX^TM
Get yours today by following this link.
I never used a graphing calculator - this (about £20 on Amazon) was the calculator that basically everybody in my class had. If you really wanted to have something in a graph form you'd just use Desmos etc
Casio fx-115es plus (fx 991es in Europe).
>Matrix and Vector Calculations
And it's okay to use on the FE exam if you are in a position to ever take that.
Most of my professors so far only allow Calculators that are allowed on the FE. as /u/DrJamaican mentioned, get a good calculator that is allowed on the FE and learn how to use that as you would breathe. I usually recommend the Casio FX991EX, it does spreadsheets and 4X4 matrices and the display and overall functionality is amazing compared to it's only real competitor the TI-36x Pro. The only thing the TI does better is keep memory of operations between power cycles. If you are gonna graph any for a class it is gonna be using MATlab or some other software package. So save yourself the money on a graphing calc and buy two great scientific calculators (always need a backup).
Nope. Not worth it and you don't need one at all. They also aren't allowed in exams.
You will however NEED a scientific calculator like these:
http://www.amazon.co.uk/Casio-FX-83GTPLUS-S-UH-FX-83GTPLUS-Scientific-Calculator/dp/B001O3IF9U
http://www.tesco.com/direct/casio-fx-83gt-plus-scientific-calculator/210-0796.prd
This Casio one is probably the best to get since most people and teachers use them and you can get help on how to use them if you don't know how. And just look at the good ratings.
The Casio FX-991EX is the best scientific calculator you can buy. It's also about $20.
Where?? It's $75 on Amazon. I paid over $50 for mine, 6 years ago, it looks like same as yours but is a different model. These are luxuries I know a bunch of people who can't afford these.
Not sure since COVID stopped it, but they did send a package that had a mug, a stress ball, and some cutlery.
> … and for the record, I never used it.
Does this mean my calculator should be fine for midterms and exams or that a calculator wasn’t ever needed?
Used this in college and while taking and passing the FE: Casio FX-991EX
Used this in highschool through freshman year of college: Casio FX-991ES PLUS
get this calculator for £30 as it can do all quadratics, that question and tonnes of other things getting you an easy 15-20 marks throughout all the papers. plus you need it if your gonna do a level.
I'm not from the US so I don't really know what level grade 12 actually is but assuming you don't need a graphing calculator I would absolutely recommend this
For a scientific calculator this will do everything you need it to and more and has taken me all the way through to the final year of my degree with no issues.
I used this: https://www.amazon.com/gp/product/B00ZZ93346/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
But if you have higher maths to do as well you might want to consider one of the nice TIs.
Casio FX-991EX Engineering/Scientific Calculator, Black (European Version) https://www.amazon.co.uk/dp/B00ZZ93346/ref=cm_sw_r_apan_glt_fabc_8PFJBRQTW4KAMV3PFESC
The 991ex is the minimum you need. The GCSE scientific calculators are no good for the A level as they do not have all the stats functions required.
The cg50 is nice, but expensive. If you're doing FM, some schools will loan one but it's not common. 991ex will do everything you need.
https://www.amazon.com/dp/B0034BAQS8/ref=cm_sw_r_cp_awdb_imm_89B2DEH3TV9Y0RTKK4J3
I see it available. Maybe it not shipped to where you are. Maybe try ebay or another online shopping website? You might even find one on craigslist!
Also, I've seen 40 dollars calculators on amazon that can do that, and I don't think they have a computer algebra system. Like this one: https://www.amazon.ca/dp/B007W7SGLO/ .
Our physics teacher specifically instructed the invigilators for mocks to not allow them, although he is hardly the best source for information.
I think the data bank regulation actually means data you can input and store yourself, meaning you could have revision notes stored on there, rather than just constants.
The amazon listing states that the calculator is "Approved for Key stages 3, 4 and 5, recommended for Advanced GCSE, A/AS level and Highers. Allowed in every UK exam where a calculator can be used."
Seems fairly clear cut to me but the whole situation is a mess. For example, if asked to solve a quadratic equation, do you still have to do it manually and use the calculator to check? Or can you just straight up write down the solutions it gives you? Simultaneous equations? Matrix multiplication?
This is the one that my teacher had said was borderline compulsory for us. It has a shit ton of functions you can use to go faster without it being cheating.
https://www.amazon.com/CASIO-Scientific-Calculator-FX-991ESPLUS/dp/B0034BAQS8
This is a great post. Thank you!
Regarding the windows calculator, I did this list awhile back. Hope it helps:
This is a cross-post from another thread seen here
With the CS271 midterm coming up and the godsend that is Windows Calculator for converting between binary, hex and decimal it's pretty awesome. However, the windows calculator doesn't have any unofficial support for signed binary. But there's a work around!
You simply need to change DWORD -> WORD for 16 bits, and WORD -> BYTE for 8 bits, then put in the binary number and now you have the signed version.
Also, it works for analyzing what number would be in a 8, 16 bit or 32 bit register.
For example, if we have the question:
The following instructions will set the Sign flag:
mov al,0FEh
sub al,2
We know the al is a 8 bit register, so if you plug in 0FEH
and have the setting to BYTE
, you'll see you will get 0FEH == -2.
So the answer here is yes, the sign flag would be set. However, if you have the setting to WORD
or DWORD OFEH == 254
. And the sign flag would not be set.
I hope this helps someone :)
I apologize that I don't know how to recreate this on a Mac, but this calculator can be a possible solution
The Casio fx-115 ES PLUS is $17 on Amazon, and has real paper-style notation, solves for x, does stats, matrices, complex numbers, tables of values, and is suitable for LITERALLY ANY HIGH SCHOOL CLASS.
I’ve been preaching to my high school students for years to drop Texas Instruments.
Speaking for myself, I'd go for something like the $12 (on Amazon) Casio FX-991EX, which better in almost every way compared to the $70 (on eBay) TI84, with extra functions like solving equations, vector addition, unit conversions and a far better screen, but TI has a lock on the educational market, and you'd have to teach yourself how to use the Casio. If you just want to follow what everyone else is doing, which is easier and requires less thought, then ask around. If you don't care about the cost, a $150 ($80 on eBay) TI-nspire CAS is cool, but because you can't use it on the SAT, you'll probably want another calculator anyway.
Recommendations for TI's and such are coming from guys who have those calculators, but they went to school a decade or more ago and haven't looked at anything since.
Your phone can do everything and more but you won't be allowed to use it on an exam.
I'm am international student for what it's worth. Tha's how much they retail everywhere here...
Even on amazon.uk it costs 100+£ while being on a discount too. Idk how you guys get them for much cheaper
What exactly does a graphing calculator do? In the UK, they're not terribly common - I did my degree with the same calculator I had in school plus Excel.
Ah, that's pretty much the same then, we were just told to buy a scientific calculator. If anything influences what brand people get, it's probably what others already have, or what they've seen their older siblings use. I know one guy bought this one after he saw me use mine to automatically solve an equation, that was about the most complex we were allowed to have