PDA

View Full Version : maybe someone can help me?


paulmoosberg
10-18-2006, 06:46 PM
Declare:
X=2, N=1
Loop:
(X+1) ^3 - X^3 + 150N = (X+6) ^3 - (X+5) ^3
X=X+5
N=N+1

i was stumbling across powers of 3 (cubes) and found an intricate association. i imagine if there is an aspy that likes math then they will be able to identify with my findings. and in such i was wondering if it actually works? or maybe i am seeing it wrong inside my head? don't mind the poem if you don't want to. i tend to express myself inside my poetry.

Five Grouped Cubes
The last and vast digits of change start to run
In groups it loops seven nine seven one one
The nines can shine that an off pattern is spun
In groups of troops between nine and seven’s son

Then cube the tube if X has seven or two
Inside to hide X’s last digit’s value
Then count amount to times as the five’s debut
Inside this stride minus six from five to view

A two to do as X N as one to state
Loop (Next of X) cube minus X cube plus fate
One fifty lifted by N to show its trait
Cube on (six) dawn (five) then X and N update

Declare:
X=2, N=1
Loop:
(X+1) ^3 - X^3 + 150N = (X+6) ^3 - (X+5) ^3
X=X+5
N=N+1


the trick is this:
1^3=1, 2^3=8, 3^3=27, 4^3=64, 5^3=125, 6^3=216, 7^3=343, 8^3=512, 9^3=729, 10^3=1000, 11^3=1331

now if you take the difference of the adjacent (next to eah other) cubes then there is a pattern in that last digit of the difference between. the pattern is 79711 so it is a group of five differences that repeats and always does 79711 as the last digit of the answer. ie the differences from example above:

7,19,37,61,91,127,169,217,271,331

see last digits are 79711 repeating always

well the cubes that make the pattern of the last digits as 9 can caculate a later power of +6 to the lower of the 2 cubes that are adjacent in the examples at the top. but funny enough the cubes that are producing the difference with a last digit of 9 are ending in 2 or 7 since the grouping of this pattern 79711 is a group of five.

then i put the counter in to show the derivations or what ever, but the difference of the difference ups by 150 evey 5 cubes so this gave me a way to calculate what the 2nd or the 3rd in the next group by flopping the opposing to the other side of the equal sign with some different math to them. but the basis is that i can calculate the numbers cubed if the numbers being cubed end in 2 or 7.

it's kinda funny that it works cause it is really wierd to see it in my head like spinning spirals of math and color.

i made an excell spreadshet and calculated out to like 102 cubes and the math still works. maybe someone can tell me the name of what i stumbled on? probably something to do with the law of cubes i would imagine.

tearducteyes
10-18-2006, 11:38 PM
no idea , sorry

tgrimes
10-19-2006, 01:21 AM
I don't follow some of your post but I was interested in the pattern because I love math and math puzzles. But I don't know if you call this sequence anything other than an interesting pattern in the last digits of the difference of consecutive cubes.
There has been much work done on this, and some are interested in the occurrence of square numbers in this sequence.
Anyway, just FYI you can figure the difference of the consecutive cubes as:
x^3 - (x-1)^3
which factors out and simplifies to:
3x^2 - 3x + 1
try it!
Well I guess that was my brain exercise for the day, thanks.:)

AKF
10-19-2006, 09:03 PM
Wow!! I love your poem, although I must admit I wouldn't have understood it if you hadn't written it out like you did. And I'm not sure if you can prove the pattern because it involved the differences, but I'll check on it. I'm so impressed by your line of thinking.

I would type more, but I cut my index finger cooking supper and this band-aid is making typing nearly impossible!!

milivica
10-20-2006, 01:06 AM
A two to do as X N as one to state
Loop (Next of X) cube minus X cube plus fate
One fifty lifted by N to show its trait
Cube on (six) dawn (five) then X and N update

Declare:
X=2, N=1
Loop:
(X+1) ^3 - X^3 + 150N = (X+6) ^3 - (X+5) ^3
X=X+5
N=N+1


Wow cool, I didn't know JL started a Braintalk in spanish.

:D

paulmoosberg
10-20-2006, 10:37 AM
of saying i am speaking in a different language? thanks, it brought a good smile to my face.

oh AKF i think it would fall under the same "idea" as the law of squares

x^2 + 2X + 1 = (x + 1)^2

but with cubes instead of squares. cause the differnce between the squares is 2x +1. and in mine the difference between the cubes would be 150N. but unfortuanatly i haven't found a way to describe all cubes. instead of only being able to calculate cubes that end in eithier 2, 3, 7, or 8. cause technically i can flop the numbers around to show calculate any of those 4 types of cubes (cubes that end in 2,3,7, or 8) as long as x ends in 7 or 2.

ie
(X+6) ^3 - (X+5) ^3 - (X+1) ^3 - 150N = X^3
or
(X+6) ^3 - (X+5) ^3 + X^3 - 150N = (X+1) ^3
or
(X+6)^3 - (X+1) ^3 - X^3 + 150N = (X+5) ^3
or
(X+1) ^3 - X^3 + 150N + (X+5)^3 = (X+6) ^3

but it is kind of early so my math might be a bit off. but you get the idea. unless this is still spansh to some of you. MILI!

teeheee

milivica
10-20-2006, 11:16 AM
it brought a good smile to my face.

Twas my goal! :D

tgrimes
10-23-2006, 01:11 AM
Paul - just wondering if you started thinking about the difference of cubes first, or the hexagons first, or both about the same time? Also, do you see the hexagons as flat, or partially 3-d, or with any lines through them?

Isabelle
10-24-2006, 01:29 AM
You should meet Pythagoras another man who thought in numbers. :D
Just kidding! I am sure he must be already your best friend. The thing is that his obsession with numbers and peculiar behaviours was not considered in the autism spectrum. It was not invented, yet, lucky guy!

paulmoosberg
10-24-2006, 08:40 AM
i think about my hexagons in 3-d and 2-d. i really like associating distance with my hexagons. and when i am jsut playing with them inside my mind, i tend to surround myself with a multitude of different hexagons all around me in 3 dimensions. then if i notice a pattern on one of them i think is cool then i write it down and play with it some more. trying to figure out relative size and volume. while trying to make graphical algorithums and stuff that is really cool to play with in my visual world.

i don't really think about just one thing ever. i tend to think of my hexagons while i am thinking abbout my poetry and pi and my difference of cubes etc. etc. but i would say my hexagons are more interesting than my cubes. but i really like my cubes because it is my first original mathematical equation. technically my first equation was x^2+2X+1=(x+1)^2. heck i even made a poem about it (writen below). but turns out it isn't mine because it is a law of squares (algebra). so the cubes is my technically first equation that i don't think is anyone elses. i really think the cubes are different than any other equation because i put a sequence or counter inside of the equation. and it still works, heck the sequence (or N in the equation) is what makes it work! by multiplying 150 from the sequence or count of what number 2 or 7. ie 12 would have 3 sequences (or N=3) 17 would be N=4, 22 would be N=5, 27 would be N=6 and so on and so forth.

i love thinking the way i do sometimes. and other times it makes me feel completely useless. why do i think like this, what is the purpose of me thinking about cubes or hexagons. sadly the logical answer is that there is no purpose and that does make me sad a bit. if my thoughts have no purpose, then maybe i have no purpose?

Power of Squares
I spent one day thinking in squares
With roots that times across in pairs
I saw as new pattern declares
Then it was shown within these squares

Adjacent squares seem to have news
I find their difference goes by twos
As the X runs around my views
I’ll times and add to show its news

Take the X in second power
Plus two X plus one to flower
Adding up to show the tower
Of (next X) in second power

X^2 = Y
2X + 1 = Z
(X + 1)^2 = Y+Z
X^2 + 2X + 1 = (X + 1)^2

tgrimes
10-24-2006, 12:47 PM
i love thinking the way i do sometimes. and other times it makes me feel completely useless. why do i think like this, what is the purpose of me thinking about cubes or hexagons. sadly the logical answer is that there is no purpose and that does make me sad a bit. if my thoughts have no purpose, then maybe i have no purpose?



First, these are not 'completely useless' thoughts, and there is a real and useful connection in the difference of cubes and hexagons. If you haven't taken any higher math you should, because you don't know how many people just rush through their work and don't bother with the theory behind 'where did this formula come from?', 'how can I look at this differently?', and other questions that are necessary to a real and deeper understanding.
The point is you find entertainment and mind exercise from it, so it is just that you have different interests from, for instance, a person who would enjoy sitting and reading a novel.