joshg253@lemmy.sdf.org to math@lemmy.sdf.org · edit-21 year agoBottle, Burger, Beer, Hot Dog Viral Puzzle – Mind Your Decisionsmindyourdecisions.comexternal-linkmessage-square4fedilinkarrow-up16arrow-down10file-text
arrow-up16arrow-down1external-linkBottle, Burger, Beer, Hot Dog Viral Puzzle – Mind Your Decisionsmindyourdecisions.comjoshg253@lemmy.sdf.org to math@lemmy.sdf.org · edit-21 year agomessage-square4fedilinkfile-text
“As viral puzzles became popular, mathematicians joined the game too. Here’s a fun puzzle that has been widely shared.”
minus-squareParsnip@lemmy.sdf.orglinkfedilinkarrow-up2·1 year agoI don’t think that would work. You just use the fact that the integral from negative to positive infinity of sin(x)/x is pi, so from 0 to infinity it is pi/2, which you can derive from using Feynman’s trick for computing weird integrals like these.
minus-squaredelial@lemmy.sdf.orglinkfedilinkarrow-up1·1 year agoAh, that’s the trick I was missing. Thx!
I don’t think that would work. You just use the fact that the integral from negative to positive infinity of sin(x)/x is pi, so from 0 to infinity it is pi/2, which you can derive from using Feynman’s trick for computing weird integrals like these.
Ah, that’s the trick I was missing. Thx!