maths coursework year 10 investigation called 'Stair numbers'

K anyone doing the maths cwk investigation called 'Stair numbers' atm
& if so reply back, and where your up to etc, i need someone to speak to about it lol

ive found rule for 1, 2 ,3,4,5,6 tier stair shape and found the pattern for
the N part, G part and adjustment in for example the 3 tier rule: T = 6N + 4g +4

Thanks :)

Done it a few months back xD
Higher tier- set 1- teacher says I could get A* in my maths gcse xD

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Originally Posted by Rups

Done it a few months back xD
Higher tier- set 1- teacher says I could get A* in my maths gcse xD

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Ah, what year you in ? 10, because im just finishing it we had 2 weeks lol

Did you go like real far on extension and do the thing with cubic sequence with the thingy tn = an[cubed] + bn[squared] + cn + d

cos im same as u set 1 n stuf lol i am aiming for 8,8,8

Oooh yah all the G's and simultaneous?

i have finished it today and got the overall rule for any grid size on any tier ;) & teacher said it was right, and i shud get A* [hopefully]

its a ded long stupid forumla lol

the g rule..thats like 2 pages lol

i dont that but that was my pratice one i have the do number grid now where u make asquare and add the other numbers together for example the top left to the bottom right, the bottom left to the top right. etc i dont undertsand it so if anyone can help with that one it would be great

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Originally Posted by Nightrose

i dont that but that was my pratice one i have the do number grid now where u make asquare and add the other numbers together for example the top left to the bottom right, the bottom left to the top right. etc i dont undertsand it so if anyone can help with that one it would be great

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well whatever shape you have, do bottom right number in the shape 's number' and then call total of the numbers in the shape 't'
and work out formula for:-

- any grid size, any tier,

by using algebra for it, eg/ mine was stair shape

and i had n / n + 1/n+ 2/ n + g / n + g + 1/ n + 2g

thats like the basicest part i finished mine now n done 18 pages lol and got final formula thingy to be

- t = (0.5t[squared] + 0.5t)N + (1/6t[cubed] - 1/6t)g + (1/6[cubed] - 1/6)

erm whats your investigation called nightrose cos my practice one was 'T total'

I did one similiar but mine was called 'sprouting triangles'

whats the formula for any step stair on any grid size. I know the first half is like

[1/2n (n+1)]g thats to work out what you times a by but i need to work out what you times g by...