The Maths of Christmas
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The way I've always worked out triangle numbers is the same but slightly different: (Nsquared + N)/2
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Sequences and series how i love thee.
For you smarty pants out there - prove the formula true for all numbers, say k, with the use of mathematical induction if you like :)
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Yeah, in fact that's exactly the idea of triangle numbers! What the formula does is use what's called an arithmetic series. It's a much faster way to calculate them.
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there was another way if you look at the numbers there is a pattern 1,3,6,10 now if you look you'll see that 1+2=3 3+3=6 and 6+4=10 do you see the pattern
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I've known this formula for a long time but I've never known of such a good explanation!
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I felt so proud when i figured this formula out on my own in 5th grade while bored in church. I thought i was the first person to figure it out and i knew i'd get a nobel prize. . .
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I do not approve of the term "merrymas" as it is disrespectful to X who was born on this day.
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Wow.. nice one.. I've worked out the algebric proof of sum(i)=n(n+1)/2, but this is so creative, I love it :P
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A merrymas to you too!
pubwebmaster 2 years ago 3
Merrymas! :)
singingbanana 2 years ago
Why do Mathematicians confuse Halloween and Christmas? Because OCT 31 = DEC 25
TheSingingNerd 2 years ago 11
Haha, nice one ;) I was going to do that at Halloween but decided to save it. Expect to see it next year.
singingbanana 2 years ago
mmhseriously guys there must be some nice men out there i am so lonely
Arlenamadra 2 years ago
I think this might be the wrong place to look.
singingbanana 2 years ago 12