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Edexcel calculators

kelefi

Reply 1

samb1234

Original post by kelefi

Don't know about sharp but both fx991 es versions are

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Reply 2

kelefi

thanks, now i just need to find out about the sharps. (im guessing they are allowed as they basically do the same thing?)

Reply 3

samb1234

Original post by kelefi

thanks, now i just need to find out about the sharps. (im guessing they are allowed as they basically do the same thing?)

What features do they have fx991 es doesn't have (Btw fx991 is very good)

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Reply 4

Patrick2810

fx991 so good you can solve quadratic/cubic equations in 2 seconds :biggrin:

also really good for z value probabilities

Reply 5

samb1234

Original post by Patrick2810

fx991 so good you can solve quadratic/cubic equations in 2 seconds :biggrin:

also really good for z value probabilities

Out of interest do you know how to use all the options in the distr section? I know how to use the greater than and less than ones but I don't really know what the other ones do

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Reply 6

Patrick2810

Original post by samb1234

sorry nope, only use more and less than

try youtube

Reply 7

samb1234

Original post by Patrick2810

sorry nope, only use more and less than

try youtube

Thought so haha no one knows what they do lol

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Reply 8

Compost

Original post by kelefi

i was just wondering, from the following list wwhich ones are and arent allowed for edexcel maths exams?
casio fx-991es plus
casio fx-991es
Sharp EL-W506
Sharp EL-W506b
are all 4 of these allowed?/QUOTE]

Edexcel's advice is here: http://qualifications.pearson.com/en/qualifications/edexcel-gcses/mathematics-2015.news.html?article=%2Fcontent%2Fdemo%2Fen%2Fnews-policy%2Fsubject-updates%2Fmathematics%2Fcalculator-regulations-for-2013-14&pageTypes=

Reply 9

anonwinner

Would you recommend getting one of these calculators now? My C3 and C4 exams are in less than 2 months. Do they help significantly?

Reply 10

samb1234

Original post by anonwinner

Would you recommend getting one of these calculators now? My C3 and C4 exams are in less than 2 months. Do they help significantly?

I'll give you a list of things the fx991 es does and them you can judge for yourself (since I don't know what's in c4)

Solve quadratic cubic or simultaneous equations (with 2 or 3 unknowns)

Differentiate and integrate numerically (will also work with trig functions)

Sum any series.

Vector mode (don't know much about this mode)

Complex mode (as above)

Matrices (as above)

Solve equations iteratively

Normal distribution tables

Probably some other stuff.

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Reply 11

anonwinner

Original post by samb1234

Thanks for the comprehensive list.

So can you literally just put in something and it will differentiate it? How is that even allowed?

Reply 12

samb1234

Original post by anonwinner

Thanks for the comprehensive list.

So can you literally just put in something and it will differentiate it? How is that even allowed?

It cannot differentiate symbolically ie in c3 it would not differentiate xlnx but it can tell you the gradient for a certain value of x. It also cannot do equations involving them it only will differentiate of you tell it what value of x you want the gradient of.

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Reply 13

kelefi

so when it says differentiate/integrate symbolically, does it mean it cant integrate something like x^2. because this calculator has an integrate button which gives you a value for the definite integrat (e.g. x^2 from 0 to 1 is 0.33333333).

im confused about what the paper says when it says the calculator cant do symbolic integration or differentiation. and i dont want to get chucked out of my exam for misunderstanding!

Reply 14

samb1234

Original post by kelefi

By symbolic differentiation it means differentiating in terms of x ie if you could type in 3x2 + 4x and it would tell you that that integrates to x^3 +2x^2 + c. This calculator only gives numeric answers so hence is fine

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