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Author Topic: Things that made you go "WTF?" today o_O  (Read 12996408 times)

Reelya

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Re: Things that made you go "WTF?" today o_O
« Reply #149505 on: January 13, 2020, 03:05:59 pm »

The proper equation to use for that is n(n+1)/2 =x which is the solution of 1+2+3+..+n = x

To get 'n' from x, note that for big numbers n * (n+1) is very close to n2. So you can just take the 12,614,400, double that (to account for the division by two in the above equation), then take the square root and round down, and that's how many items the full song will have. So a 1-year song could have 5022 items. Call that 5000 items.

(5000 * 5001)/2= 12,502,500 sung items in a year, which work out at almost 24 sung items per minute, which is very close to the original estimate. So you could start singing the "5000 days of Christmas" at midnight New Years Eve and complete the whole song by midnight New Years Eve the next year, ready to start again.

However, if you made a version of the song with N = 12,500,000 items, and it took a year to sing just the last verse, then to sing the whole song would take N(N+1)/2 steps, which would work out at 6.25 million years to complete the whole song. Which makes perfect sense. You're singing every version of the song from length 1 to length N, so the average length of a verse is N/2, and you're doing that N times. So you're singing 12.5 million verses but the average length of a verse is half the longest, so with 12.5 million items taking a year, it takes half that or 6.25 million years to sing.
« Last Edit: January 13, 2020, 04:17:40 pm by Reelya »
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Dunamisdeos

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Re: Things that made you go "WTF?" today o_O
« Reply #149506 on: January 13, 2020, 03:07:57 pm »

Bay12 is the most internet place on earth.

Also this would make a great SCP.
« Last Edit: January 13, 2020, 03:11:25 pm by Dunamisdeos »
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Reelya

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Re: Things that made you go "WTF?" today o_O
« Reply #149507 on: January 13, 2020, 03:29:50 pm »

I thought of one other thing to complete the above thought. If it takes 365 days to sing the "5000 days of Christmas" and 6.25 million years (2.28 billion days) to sing the "12.5 million days of Christmas" then there must be an "N" value for which it takes exactly N days to sing "The N Days of Christmas". This could be considered a fundamental unit of measurement for a system I call Christmas Time.

Let's base that on 24 sung items per minute. That means 24 * 60 * 24 = 34560 sung items per day. Solving for N = N(N+1)/2/34560 gives N = 69119. So you could sing the "69119 Days of Christmas" and it would take exactly 69119 days to complete the cycle.

Magistrum

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Re: Things that made you go "WTF?" today o_O
« Reply #149508 on: January 13, 2020, 04:01:58 pm »

My WTF was coming to this thread and finding a convention of math fetishists.
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Frumple

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Re: Things that made you go "WTF?" today o_O
« Reply #149509 on: January 13, 2020, 06:40:42 pm »

Honey, the most complicated symbol in that discussion is probably * or the exponential. You haven't even touched on math fetishism, this is math dalliance at most.
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Dunamisdeos

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Re: Things that made you go "WTF?" today o_O
« Reply #149510 on: January 13, 2020, 06:44:06 pm »

It's using letters, precious. What's letters, precious?!?!?!?!
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MrRoboto75

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Re: Things that made you go "WTF?" today o_O
« Reply #149511 on: January 13, 2020, 07:01:21 pm »

Honey, the most complicated symbol in that discussion is probably * or the exponential. You haven't even touched on math fetishism, this is math dalliance at most.

I draw the line at factorials.  Like, now the math is shouting at me.
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Naturegirl1999

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Re: Things that made you go "WTF?" today o_O
« Reply #149512 on: January 13, 2020, 07:08:53 pm »

Factorial examples? What is equations like

b/s=a*f+e=gh=i-o

called?
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Eschar

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Re: Things that made you go "WTF?" today o_O
« Reply #149513 on: January 13, 2020, 07:38:43 pm »

The factorial of a number is the product of that number and all positive integers less than it.

For example:
4! = 4*3*2*1 = 24
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Naturegirl1999

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Re: Things that made you go "WTF?" today o_O
« Reply #149514 on: January 13, 2020, 07:47:57 pm »

So would the factorial of 20 be 20*19*18*17*16*15*14*13*12*11*10*9*8*7*6*5*4*3*2*1= 2.432902*1018?
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pisskop

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Re: Things that made you go "WTF?" today o_O
« Reply #149515 on: January 13, 2020, 07:50:56 pm »

And zero.  Multiply the final product by zero as well
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Enemy post

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Re: Things that made you go "WTF?" today o_O
« Reply #149516 on: January 13, 2020, 07:51:01 pm »

Factorial examples? What is equations like

b/s=a*f+e=gh=i-o

called?

« Last Edit: January 13, 2020, 07:54:24 pm by Enemy post »
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Eschar

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Re: Things that made you go "WTF?" today o_O
« Reply #149517 on: January 13, 2020, 09:39:08 pm »

And zero.  Multiply the final product by zero as well

Do not actually do this NG
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Naturegirl1999

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Re: Things that made you go "WTF?" today o_O
« Reply #149518 on: January 13, 2020, 09:39:53 pm »

And zero.  Multiply the final product by zero as well

Do not actually do this NG
I won’t, it will turn everything to 0
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Magistrum

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Re: Things that made you go "WTF?" today o_O
« Reply #149519 on: January 13, 2020, 10:39:35 pm »

How old is nature girl? She doesn't know factorials, so... Some twelve years old or less? I guess most countries go over that by that age.
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