Mere's Totally Random and (Mostly) Useless Maths Facts!

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OTLegend

Member

11-21-2012

Quote:
Originally Posted by Jesus the Friend View Post
^ Mangina in disguise.

Sure smells like a bleeding mang.
Mangina pretty much is like calling someone a ***** right?

Well I think that's what it means and thats pretty ironic.

In Gautamala or wherever you live that probably has different meanings.

In the U.S. if you were crushing over some of these girls like you do like Scarlena and Hippo, you'd be asked if you hit it and your reply would be no. You would then be told to quit acting like a ***** or a 15 year old girl and be a man and hit it.


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Mere Intricacy

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11-21-2012

Quote:
Originally Posted by Keshaldra View Post
To square a number that ends in "5", take the numbers before it (n), and multiply by (n+1), then slap a "25" on the end.

25 x 25

2 * 3 = 6
add a "25" on the end = 625


75 x 75
7 x 8 = 56
add a "25" on the end = 5625

105 x 105
10 x 11 = 110
add a "25" on the end = 11025
That's really cool ...


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Mere Intricacy

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11-21-2012

FACT #2:
Many of you may have heard of the Fibonacci Squence which is found by adding the 2 pervious numbers in the seqeunce;0, 1, 1, 2, 3, 5, 8, 13 ....

But did you know to find the nth term all you need to do is put it into his formala,without knowing the two pervious numbers...

an = (1/sqrt(5))*(((1 + sqrt(5))/2)^n + ((1 - sqrt(5)/2)^n)

Where a0 = 0 and a1 = 1.
Try it for yourself!


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OTLegend

Member

11-21-2012

LOL Mere.

I think you're supposed to wait a day for fact 2.


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Mere Intricacy

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11-21-2012

It's tomorrow...
It's day 2.
I can post whatever time of that day I like.


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OTLegend

Member

11-21-2012

Quote:
Originally Posted by Mere Intricacy View Post
I can post whatever time of that day I like.
That's true.


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Mere Intricacy

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11-21-2012

If this post goes positive I shall upload the working for that amazing function!

Edit: Positive in 24 hours...


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Exoctane

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11-21-2012

Did you know they invented calculators do do all this for us?

Fact: I made butter chicken + basmati rice for dinner


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Mere Intricacy

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11-21-2012

Yes and no..
Finding factors of very large numbers is actually still a big problem, as it is exponentially bigger than timing too numbers.
They are developing Quantum Computers (a lot of work on this is being done at my uni) which will be able to divide big numbers.


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Exoctane

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11-21-2012

Turns out... any practical real world math I've ever needed to solve I can do with a calculator or an excel formula.