weird@sub.wetshaving.social to memes@lemmy.world · 1 day agoNot fairsub.wetshaving.socialimagemessage-square68linkfedilinkarrow-up1954arrow-down127
arrow-up1927arrow-down1imageNot fairsub.wetshaving.socialweird@sub.wetshaving.social to memes@lemmy.world · 1 day agomessage-square68linkfedilink
minus-squareConsole_Modderlinkfedilinkarrow-up38·1 day agoRounding pi to 3 is just the engineering way. It’s close enough to get the job done and then I don’t have to worry about decimal places. However, using pi=3 typically undershoots your calculations, so personally I like to use pi=4
minus-squareAceticon@lemmy.dbzer0.comlinkfedilinkEnglisharrow-up21arrow-down1·1 day agoAn error margin of less than 5% (even better, biased in a known direction) is more than good enough for plenty of use cases. An error margin of more than 25% on the other hand, is seldom acceptable.
minus-squareI'm Hiding 🇦🇺@aussie.zonelinkfedilinkarrow-up3·9 hours agoOne is an error margin, the other a factor of safety!
minus-squareConsole_Modderlinkfedilinkarrow-up20·1 day agoNah, it’s fine. Trust me I use pi=4 in every calculation I do that uses pi and I haven’t ever run into any issues at all (I’m not that type of engineer, I never do anything with pi)
Rounding pi to 3 is just the engineering way. It’s close enough to get the job done and then I don’t have to worry about decimal places. However, using pi=3 typically undershoots your calculations, so personally I like to use pi=4
An error margin of less than 5% (even better, biased in a known direction) is more than good enough for plenty of use cases.
An error margin of more than 25% on the other hand, is seldom acceptable.
One is an error margin, the other a factor of safety!
Nah, it’s fine. Trust me I use pi=4 in every calculation I do that uses pi and I haven’t ever run into any issues at all
(I’m not that type of engineer, I never do anything with pi)
It’s called safety factor