I am currently a GCSE student taking the GCSE Maths papers, but I want to thank you for your dedication towards helping others. God bless you my friend. You are very under-rated.
@@aceofhearts5276 Yes, indeed. I will be taking A level maths and A level further maths too, as I am aiming for a grade 9 in Maths. I also take GCSE Further maths.
Some additional tips that I use: 1) To check if 2 expressions are equivalent, use ANS instead of the unknown and substitute values in the previous line of working. Subtract one expression from the other and the result should be 0 regardless of the ANS value of the previous line. 2) Compared to the fx model, this calculator also gives exact values for many more trigonometric functions. If a question asks for the exact value of cos(n) or something like that, you can check your answer. And some tips for further maths: 1) If you need to simplify a matrix expression with an unknown, plug it into the calculator and use i instead of the unknown. The result will contain i, and just substitute back the unknown. (works as long as the unknown isn't squared). You can find inverses of 3x3 matrices with an unknown in seconds, for example. 2) If asked to convert lines/planes between cartesian/vector form, plot the equation given in the question and your result using the 3D graph feature. If the lines/planes overlap, your answer is correct.
@H 12899 So if there is an unknown x within a matrix, plug the expression into the calculator but substitute i in place of x. The calculator will keep that as i during the operation. The final result will contain i, and just substitute x back in place for i. This works as long as there is no x^2. Let's say you need to find the result of the following expression: [1 2] [4 3] [3 x ] [2 1] Substitute it exactly into the calculator but use i instead of x. Calculator result: [8 5] [12 +2i 9 + i] Just substitute back x for i, and you get the answer.
@@gamesandstuff7724 it wouldnt really work if substitute x for i TOWORDS THE END E.g to find inverse of (2 0 3) (i 1 1) (Z) (1 1 1) If you sub x for i towards the end then it’s wrong (try it for urself ) However I found a solution to find the det which is 3x+3 ~ 1/3x+3 obviously write it like 1/3i+3 (y) then using inverse of inverse of “z” divide it by “y” and the answer let’s say equal to “h” then change i back to x ur final answer would be y which 1/3x+3 times h Have a go at it and see
@@mathonline8787 Isn't the determinant for this matrix 3x -3, not 3x +3? But I understand what you mean. Calculator simplifies 1/i to -i, so it doesn't work with this matrix. But what you could do is to multiply the inverse by the determinant to get the transposed cofactor matrix, and thats like 90% of the work of finding the inverse anyway. Then you can divide that by the determinant yourself. (I think you did something similar as well.)
You don't do much mechanics/statistics. Any chance u can go through some edexcel A level ones pre paper 3? Love your mp3/synoptic paper vids btw. Helped me so so much in Paper 1 🙏🏻
its not too late to buy it. especially for the pure 2 and stats and mech. It will make a huge difference and you can resell after. Depends if you need a high grade badly i guess
@@scoopet the exams literally tmr plus I’ve never used it, it’ll take a while to get used to it and learn all the stuff. But if I fail and need to resit will defo buy this calculator 💀
@@J.246 buy it now and don't use it tomorrow. Use it next week and week after. Only took me a day to understand the majority of how it works. My friend got it around a month ago and he gets better scores using it than before so we always joke about it being pay 2 win lol
one of my friends who was doing the a level just yesterday had this calculator taken away from him because the invigilator thought it was cheating and not allowed. the guy didn't get to use his calculator the whole exam and had to use the other one.
It definitely is unfair. With this calculator, in my experience, you can get +10% higher as you can check your answers for pretty much any question. For further maths, it is even more overpowered.
@@mathonline8787 Vectors become stupidly easy to check your answers for, as you can plot planes for example and find their relation to each other (Whether they intersect for example or even the intersection line equation...) its just too much
Im in yr11 going into yr12 in september and planning to study a level maths and further maths. Is the calculator still worth getting even in exam mode? thanks
I understand that you're trying to help people pass their exams, but surely if students just learn how to answer these questions using their calculator then that defeats the whole point of actually learning maths at A-Level? It'll get you the right answers, but you'll be a poor mathematician
its all for checking purposes. you wont get any marks for right answers only, but its a very good safety net to check your work and make sure you dont make silly mistakes throughout ur process which could throw everything off. Also its a life saver for stats
absolutely world class
coming in clutch just a day before the a level, love the video 🐐
I am currently a GCSE student taking the GCSE Maths papers, but I want to thank you for your dedication towards helping others. God bless you my friend. You are very under-rated.
if you take a level, trust me this man is so goated for it. he rlly helped a lot with his videos and im feeling a lot more confident
@@aceofhearts5276 Yes, indeed. I will be taking A level maths and A level further maths too, as I am aiming for a grade 9 in Maths. I also take GCSE Further maths.
@@michaelswahla4927 aqa fm? Or igcse im taking aqa
@@fam3512 AQA fm
@@michaelswahla4927 dont forget TLmaths too!!!!!!!!!!
STUMBLED ACROSS YOU THE DAY BEFORE MY EXAM, you’re SAVING ME THANK YOU 🎉
Happy to help!
@@MrAstburyMaths can you do 1 for paper 3 pls
this might be the single greatest video i’ve ever seen
Haha, I’ll take that!!
wish i saw this before paper 1.
Some additional tips that I use:
1) To check if 2 expressions are equivalent, use ANS instead of the unknown and substitute values in the previous line of working. Subtract one expression from the other and the result should be 0 regardless of the ANS value of the previous line.
2) Compared to the fx model, this calculator also gives exact values for many more trigonometric functions. If a question asks for the exact value of cos(n) or something like that, you can check your answer.
And some tips for further maths:
1) If you need to simplify a matrix expression with an unknown, plug it into the calculator and use i instead of the unknown. The result will contain i, and just substitute back the unknown.
(works as long as the unknown isn't squared). You can find inverses of 3x3 matrices with an unknown in seconds, for example.
2) If asked to convert lines/planes between cartesian/vector form, plot the equation given in the question and your result using the 3D graph feature. If the lines/planes overlap, your answer is correct.
What do you mean by the use i for the matrix?
@H 12899 So if there is an unknown x within a matrix, plug the expression into the calculator but substitute i in place of x. The calculator will keep that as i during the operation. The final result will contain i, and just substitute x back in place for i. This works as long as there is no x^2.
Let's say you need to find the result of the following expression:
[1 2] [4 3]
[3 x ] [2 1]
Substitute it exactly into the calculator but use i instead of x.
Calculator result:
[8 5]
[12 +2i 9 + i]
Just substitute back x for i, and you get the answer.
@@gamesandstuff7724 dam that's smart would that also work for 2x instead of x
@@gamesandstuff7724 it wouldnt really work if substitute x for i TOWORDS THE END
E.g to find inverse of (2 0 3)
(i 1 1) (Z)
(1 1 1)
If you sub x for i towards the end then it’s wrong (try it for urself )
However I found a solution to find the det which is 3x+3 ~ 1/3x+3 obviously write it like 1/3i+3 (y) then using inverse of inverse of “z” divide it by “y” and the answer let’s say equal to “h” then change i back to x ur final answer would be y which 1/3x+3 times h
Have a go at it and see
@@mathonline8787 Isn't the determinant for this matrix 3x -3, not 3x +3?
But I understand what you mean. Calculator simplifies 1/i to -i, so it doesn't work with this matrix.
But what you could do is to multiply the inverse by the determinant to get the transposed cofactor matrix, and thats like 90% of the work of finding the inverse anyway. Then you can divide that by the determinant yourself. (I think you did something similar as well.)
Learnt a few things with pure and mechanics in a few hours. Cheers.
You’re welcome, glad you found it helpful
A literal lifesaver my dude! Thank you!
These tips changed my life Sir! thank you very much!!
Glad to hear that!
youre a life saver
Great Videos always watch ur channel thanks for the help for my past GCSE'S and my ones to come👍
You don't do much mechanics/statistics.
Any chance u can go through some edexcel A level ones pre paper 3? Love your mp3/synoptic paper vids btw. Helped me so so much in Paper 1 🙏🏻
Once paper 2 is done I’ll turn my attention to paper 3. Be sure to subscribe so you don’t miss it 🙂
@@MrAstburyMaths 100% already subscribed. With the help you give im not even gonna unsubscribe after im done lol 😂
MR ASTBURY, THANK YOU
Does anyone know why the calculator doesn’t let me integrate a parametric function using the g solve ??
Awww don’t have the graphic calc got the normal classwiz
its not too late to buy it. especially for the pure 2 and stats and mech. It will make a huge difference and you can resell after. Depends if you need a high grade badly i guess
@@scoopet the exams literally tmr plus I’ve never used it, it’ll take a while to get used to it and learn all the stuff. But if I fail and need to resit will defo buy this calculator 💀
@@J.246 buy it now and don't use it tomorrow. Use it next week and week after. Only took me a day to understand the majority of how it works. My friend got it around a month ago and he gets better scores using it than before so we always joke about it being pay 2 win lol
How am I just learning this on the day of my pure 1 exam?
Good timing I say!
well thank you for increasing the grade boundaries xD fml
🤣
Can you do a video on calculator tricks for stats please?
You bet, will do in time for paper 3. Subscribe so you don’t miss it when it drops! 😀
@@MrAstburyMaths go on then
Could someone tell me how to get coordinates up on my calculator? Thanks
one of my friends who was doing the a level just yesterday had this calculator taken away from him because the invigilator thought it was cheating and not allowed. the guy didn't get to use his calculator the whole exam and had to use the other one.
Is this calculator allowed in the normal maths exam? Seems like an unfair advantage compared to those who use the normal fx-991EX
It definitely is unfair. With this calculator, in my experience, you can get +10% higher as you can check your answers for pretty much any question. For further maths, it is even more overpowered.
@@gamesandstuff7724 why for Further math ?
@@mathonline8787 Vectors become stupidly easy to check your answers for, as you can plot planes for example and find their relation to each other (Whether they intersect for example or even the intersection line equation...) its just too much
You are amazing 🤩
Hi sir , could you do the January 2023 international pure paper ?
Are you planning on doing one of these for paper 3 ?
You know it!
Does all this work in exam mode?
Yes I believe so, best way to find out for sure is to check yourself prior to the exam
Im in yr11 going into yr12 in september and planning to study a level maths and further maths. Is the calculator still worth getting even in exam mode? thanks
Wowzer
Hope it’s helpful. Remember, use the calculator to check you work!
Me wondering why my teachers never told me about these cheat codes.
🤣 remember to use them just to check your answers
I understand that you're trying to help people pass their exams, but surely if students just learn how to answer these questions using their calculator then that defeats the whole point of actually learning maths at A-Level? It'll get you the right answers, but you'll be a poor mathematician
its all for checking purposes. you wont get any marks for right answers only, but its a very good safety net to check your work and make sure you dont make silly mistakes throughout ur process which could throw everything off. Also its a life saver for stats
@@exteriorarchives that’s a good point, I forgot about method marks etc!
Will you make for stats too?
You bet
Hi sir! This is unrelated but when you find an inverse function, do you always have to state the domain?
Not necessarily, but they usually ask for it
Yes its always a mark even though they don’t specifically ask for it
100 quid for a calculator 😂😂
Just discovered SolveN, its so good
True that 😀
@@MrAstburyMaths Do you get method marks for a cast diagram?...or can u just use the SolveN function and write down your instead
*answers