Ad4mWayn3@sh.itjust.works to Ask Lemmy@lemmy.world · 3 days agoWhat is your favorite math constant that is NOT a real number?message-squaremessage-square43linkfedilinkarrow-up162arrow-down13
arrow-up159arrow-down1message-squareWhat is your favorite math constant that is NOT a real number?Ad4mWayn3@sh.itjust.works to Ask Lemmy@lemmy.world · 3 days agomessage-square43linkfedilink
minus-squareOnno (VK6FLAB)@lemmy.radiolinkfedilinkarrow-up2arrow-down6·3 days agoZero It’s the absence of a number and has all manner of interesting edge cases associated with it.
minus-squareoessessnex@programming.devlinkfedilinkarrow-up3·2 days agoFor a while 1 wasn’t considered to be a number either http://aleph0.clarku.edu/~djoyce/elements/bookVII/defVII1.html
minus-squareAd4mWayn3@sh.itjust.worksOPlinkfedilinkarrow-up13arrow-down1·3 days agoZero is the absence of a quantity, but it is still a number.
minus-squarenovember@lemmy.vglinkfedilinkEnglisharrow-up5·2 days agoZero is a real number, but interestingly, it’s also a pure imaginary number. It’s the only number that’s both things at once.
minus-squareOnno (VK6FLAB)@lemmy.radiolinkfedilinkarrow-up2·2 days agoAs I said … lots of edge cases :)
minus-squareAd4mWayn3@sh.itjust.worksOPlinkfedilinkarrow-up2·2 days agoIt gets deeper. It’s also the same as the 0-k-vector, the 0-k-blade, the 0-multivector, the only number that is its own square besides 1, etc…
minus-squarenovember@lemmy.vglinkfedilinkEnglisharrow-up1·2 days agoThere are other idempotent numbers in the split-complex and q-adic (for non-prime q) numbers.
Zero
It’s the absence of a number and has all manner of interesting edge cases associated with it.
For a while 1 wasn’t considered to be a number either http://aleph0.clarku.edu/~djoyce/elements/bookVII/defVII1.html
Zero is the absence of a quantity, but it is still a number.
Zero is a real number, but interestingly, it’s also a pure imaginary number. It’s the only number that’s both things at once.
As I said … lots of edge cases :)
It gets deeper. It’s also the same as the 0-k-vector, the 0-k-blade, the 0-multivector, the only number that is its own square besides 1, etc…
There are other idempotent numbers in the split-complex and q-adic (for non-prime q) numbers.