Witchcraftmander.xyzimage fossilesque ( @fossilesque@mander.xyz ) M Science Memes@mander.xyzEnglish • edit-28 days ago message-square10fedilinkarrow-up1225
arrow-up1225imageWitchcraftmander.xyz fossilesque ( @fossilesque@mander.xyz ) M Science Memes@mander.xyzEnglish • edit-28 days ago message-square10fedilink
minus-square Grubberfly 🔮 ( @grubberfly@mander.xyz ) linkfedilinkEnglish32•8 days agotbf, the 2nd sum is exactly the first one just multiplied by 1/2. though i get that the progression is natural, even, and odd. the last one is definitely odd puzzling, but i cannot intuitively get the first one. how does summing the inverse of triangular number equal 2?
minus-square lolcatnip ( @lolcatnip@reddthat.com ) linkfedilinkEnglish10•8 days agoIt’s not saying the proof is obvious, just that the result is plausible on its face.
tbf, the 2nd sum is exactly the first one just multiplied by 1/2. though i get that the progression is natural, even, and odd.
the last one is definitely
oddpuzzling, but i cannot intuitively get the first one. how does summing the inverse of triangular number equal 2?It’s not saying the proof is obvious, just that the result is plausible on its face.