@Ad4mWayn3@sh.itjust.works to Ask Lemmy@lemmy.world • 13 days agoWhat is your favorite math constant that is NOT a real number?message-square42fedilinkarrow-up161arrow-down10
arrow-up161arrow-down1message-squareWhat is your favorite math constant that is NOT a real number?@Ad4mWayn3@sh.itjust.works to Ask Lemmy@lemmy.world • 13 days agomessage-square42fedilink
minus-squareOnno (VK6FLAB)linkfedilink1•13 days agoZero It’s the absence of a number and has all manner of interesting edge cases associated with it.
minus-square@Ad4mWayn3@sh.itjust.worksOPlinkfedilink14•13 days agoZero is the absence of a quantity, but it is still a number.
minus-square@november@lemmy.vglinkfedilinkEnglish5•12 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-square@Ad4mWayn3@sh.itjust.worksOPlinkfedilink2•12 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-square@november@lemmy.vglinkfedilinkEnglish1•12 days agoThere are other idempotent numbers in the split-complex and q-adic (for non-prime q) numbers.
minus-square@oessessnex@programming.devlinkfedilink3•12 days agoFor a while 1 wasn’t considered to be a number either http://aleph0.clarku.edu/~djoyce/elements/bookVII/defVII1.html
Zero
It’s the absence of a number and has all manner of interesting edge cases associated with it.
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.
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.
As I said … lots of edge cases :)
For a while 1 wasn’t considered to be a number either http://aleph0.clarku.edu/~djoyce/elements/bookVII/defVII1.html