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Fermat's Library
A simple visual proof that: 1+2+3+...+n = (n²+n)/2 ⚪ ⚫⚫⚫ ⚪⚪ + ⚫⚫ ⚪⚪⚪ ⚫ = ⚪⚫⚫ ⚫ ⚪⚪⚫ + ⚫ ⚪⚪⚪ ⚫
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Hadi 3 Nov 18
Replying to @fermatslibrary
Not really a proof though.
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Joseph👉👈Delong 3 Nov 18
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Kipling Gillespie 3 Nov 18
That makes so much more sense to me. Thank you! I've even seen this proof before and didn't understand it.
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Ankur Gupta🇮🇳 3 Nov 18
Replying to @fermatslibrary
Mathematical beauty....
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𝓡𝓐𝓗𝓘𝓜 Μωάμεθ - راحم محمد 3 Nov 18
Replying to @fermatslibrary
i d rather stick the two triangles to form a rectangle of n*(n+1) - • • • - - • • - - - •
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Per Lindholm 3 Nov 18
Replying to @fermatslibrary
In machine learning math I guess you can make your own dataset from functions, n=np.arange(100),data=[n,np.cumsum(n),n**2] then do a transformation data[:,1] = model(data[:,0],data[:,2]). Then a limited math model() of some sort should show the equation?
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Suman Biswas ♬ 3 Nov 18
Replying to @fermatslibrary
Another perspective: n = •••... ↓ ... • - - - • - - - 2 x (1+2+ .... +n) • - - - ...etc ↑ ≡ • - - - = n x (n+1) • - - - • - - - = n + n²
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Sanchay 3 Nov 18
Replying to @fermatslibrary
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