World record formula for nxnxn cubes

[JensRenders]

Not really accurate, but here it is

y=7.5(x-2)^2

where x is the n of the nxnxn cube and y is the estimate average world record

the 7.5 is the value of skill that humans have, the lower this number, the more skill we have, if this number goes down a bit then the time for a 3x3x3 cube would also change a bit and the time of a 7x7x7 cube would change alot more

if the value of 7.5 becomes 0 then we can solve all cubes in no time

I just discovered that 7.5 is what it gives for 3x3x3 haha if you change that to the exact wr 7.64 than thats what the formula gives ofcourse

[monkeytherat]

So skill has nothing to do with 2x2 solves??

[JensRenders]

2x2 solves can get lower but they are almost zero (and yes, 2.12=0 thats about the accuracy of this formula)

[ben1996123]

Single WR estimate:

x	y	WR - y
2	0.43571	0.254287
3	6.63572	-0.97572
4	23.8381	2.9319
5	57.2429	-2.3829
6	112.05	2.76
7	193.46	-0.35
8	306.672
9	456.886
10	649.303
11	889.122

[Sa967St]

Excel gives y = 1.0342e^0.7812x with R² = 0.9525 as the exponential curve of best fit using 3-7 WR averages. Interestingly, the result for 7x7x7 is way under the curve, suggesting it's relatively fast compared to the other WRs.

[ben1996123]

Excel gives y = 1.0342e^0.7812x with R² = 0.9525 as the exponential curve of best fit using 3-7 WR averages. Interestingly, the result for 7x7x7 is way under the curve, suggesting it's relatively fast compared to the other WRs.

Wolframalpha gives with R² = 0.996411 with 3-7 averages. Doesn't really seem that good though

x	y	WR - y
2	9.83653	-7.71653
3	18.0362	-10.3962
4	33.0709	0.4991
5	60.6386	-2.6986
6	111.186	9.244
7	203.87	-3.4
8	373.814
9	685.422
10	1256.78
11	2304.43

[Mike Hughey]

Excel gives y = 1.0342e^0.7812x with R² = 0.9525 as the exponential curve of best fit using 3-7 WR averages. Interestingly, the result for 7x7x7 is way under the curve, suggesting it's relatively fast compared to the other WRs.

If you use this formula for 11x11x11, you get 92 minutes!

[Sa967St]

If you use this formula for 11x11x11, you get 92 minutes!

Five points isn't enough to accurately extrapolate that far.

[JensRenders]

If you use this formula for 11x11x11, you get 92 minutes!

if you use mine, you get 10 minutes!

[The Bloody Talon]

Not really accurate, but here it is

y=7.5(x-2)^2

the 7.5 is the value of skill that humans have, the lower this number, the more skill we have, if this number goes down a bit then the time for a 3x3x3 cube would also change a bit and the time of a 7x7x7 cube would change alot more

the value of my skill is approximately 13..