Two cubed is sixteen

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Two cubed is sixteen

#1  Postby devogue » Dec 22, 2017 5:31 am

2×itself×itself=16

Innit?

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Re: Two cubed is sixteen

#2  Postby felltoearth » Dec 22, 2017 5:33 am

No
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Re: Two cubed is sixteen

#3  Postby zulumoose » Dec 22, 2017 6:09 am

By similar logic triplets is 4 kids.
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Re: Two cubed is sixteen

#4  Postby Thommo » Dec 22, 2017 11:22 am

felltoearth wrote:No


:this:

2xitselfxitself is just a bad way of writing 2x2x2.

To get 16 you'd have to do something like f(f(2)) where f(x) = x^2. Which is of course just writing x^4 in a recursive fashion.
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Re: Two cubed is sixteen

#5  Postby Matthew Shute » Dec 22, 2017 12:07 pm

devogue wrote:2×itself×itself=16


2 x 22 = 8

Or is there a Christmas maths joke none of us is getting? :scratch:
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Re: Two cubed is sixteen

#6  Postby z8000783 » Dec 22, 2017 1:01 pm

If itself = √8 then the answer is correct.

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Re: Two cubed is sixteen

#7  Postby Blackadder » Dec 23, 2017 8:11 pm

Two cubes is a hexahedron.
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Two cubed is sixteen

#8  Postby The_Metatron » Dec 23, 2017 8:52 pm

Here’s what you do:

Move the cursor to the number 16 on the LL3 scale. Then, draw the number 3 on the C scale (to find the third, or cube, root) under the cursor.

Image

now, move the cursor to the index of the C scale and read the solution on the LL2 scale:

Image

Around 2.52.


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Re: Two cubed is sixteen

#9  Postby DavidMcC » Dec 25, 2017 6:16 pm

Blackadder wrote:Two cubes is a hexahedron.

Actually, even ONE cube is a hexahedron - a regular one.
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Re: Two cubed is sixteen

#10  Postby Blackadder » Dec 25, 2017 9:38 pm

DavidMcC wrote:
Blackadder wrote:Two cubes is a hexahedron.

Actually, even ONE cube is a hexahedron - a regular one.


Yes, that's correct. But not funny.
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Re: Two cubed is sixteen

#11  Postby DavidMcC » Dec 26, 2017 11:32 am

Blackadder wrote:
DavidMcC wrote:
Blackadder wrote:Two cubes is a hexahedron.

Actually, even ONE cube is a hexahedron - a regular one.


Yes, that's correct. But not funny.

Maybe not, but then I was not aware that humour was obligatory.
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Re: Two cubed is sixteen

#12  Postby pelfdaddy » Dec 27, 2017 5:38 am

Every time I start to think the Metatron is cool, I find out I underestimated him, and that he is way cooler than I realized.

A slide rule.

A fucking slide rule.

I thought I was the shit because I use triangles to build crap.

But a fucking slide rule? I'm still geekin' out about it.
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Re: Two cubed is sixteen

#13  Postby felltoearth » Dec 27, 2017 5:54 am

^this
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Re: Two cubed is sixteen

#14  Postby The_Metatron » Dec 27, 2017 6:41 pm

Well, thanks. That’s as nice a compliment as I’ve ever got. It’s been my experience though, the group of people who share your assessment is small.

Those were screenshots of one of the slide rule apps I have on my iPad. I wish I knew how to make those apps, because it would be very cool if I could rewrite the app so one could select from different models and makes of slide rules.

I have about 25 of them in my collection, with a few duplicates. When I was actively collecting them, I got the duplicates of some models for my boys, so they could learn to use them, too.

Primus was using his to produce answers to his maths problems instead of learning how to manipulate exponents and radicals to solve problems with powers and roots. I couldn’t fault his ingenuity at all.


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Re: Two cubed is sixteen

#15  Postby The_Metatron » Dec 27, 2017 6:46 pm

It occurs to me that he was likely the only 13 year old kid on the entire planet who was using a slide rule to cheat on his math problems.


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Re: Two cubed is sixteen

#16  Postby i have no avatar » Jan 01, 2018 1:16 am

Perhaps if we added parenthesis? The title of the thread belies this but maybe the original statement of the problem was a puzzle designed for someone to try to make the statement true in some way?

(2×itself)×itself=16

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Re: Two cubed is sixteen

#17  Postby Alan B » Jan 01, 2018 11:36 am

'itself' = 2? :scratch:
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Re: Two cubed is sixteen

#18  Postby DavidMcC » Jan 01, 2018 2:19 pm

This problem shows exactly why the word, "itself" is not generally used in algebra!
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Re: Two cubed is sixteen

#19  Postby Cito di Pense » Jan 01, 2018 3:54 pm

Could it be that what the OP was trying to express is something like a recursion:

X(n+1) = X(n) * X(n) with X(0) = 2? You can get X(2) = 16 this way.

Naah. The language in the OP has no vocabulary, no syntax, and no grammar. What does that make it? Drubk!
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Re: Two cubed is sixteen

#20  Postby laklak » Jan 01, 2018 4:18 pm

It's Devish, a little known dialect of teangacha Gaelacha.
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