Lub sphere muaj pes tsawg qhov ntev?
Lub sphere muaj pes tsawg qhov ntev?

Video: Lub sphere muaj pes tsawg qhov ntev?

Video: Lub sphere muaj pes tsawg qhov ntev?
Video: txhob hnov qab kuv lub npe - Bee lee [Official MV] 2022-23 2024, Hlis ntuj nqeg
Anonim

Sphere yog ib Peb DIMENSIONAL daim duab, raws li nws muaj peb qhov ntev thiab nyob hauv qhov chaw 3D. Nyob rau hauv ib tug kheej kheej tag nrho cov ntsiab lus ntawm nws nto yog equidistant los ntawm ib tug taag point (Nws centre).

Kuj nug, puas muaj ib tug kheej kheej muaj qhov ntev?

A kheej kheej txhais tau ntau npaum li lub voj voog, tsuas yog nws nyob hauv 3 qhov ntev . Yog li ntawd, nws yog txhais raws li cov txheej txheem ntawm tag nrho cov ntsiab lus nyob rau hauv qhov chaw uas sib npaug zos deb ntawm ib qho chaw. Yog li ntawd, ib qho ntawm cov yam ntxwv ntawm a kheej kheej yog nws lub voj voog.

Ib tug kuj yuav nug, muaj pes tsawg qhov loj ntawm lub voj voog thiab kheej kheej? Tag nrho cov ntsiab lus ntawm ib lub voj voog, thiab cov ntsiab lus nyob deb ntawm ib tus kheej yog nyob rau ntawm qhov chaw ruaj khov ntawm qhov chaw focal (center). Txawm li cas los xij, muaj qhov sib txawv xws li lub voj voog yog ob seem , hos ib sphere yog a peb seem khoom.

Tsis tas li ntawd, dab tsi yog 4-dimensional sphere hu ua?

lub voj voog, uas yog ib- qhov seem ib ncig ntawm ib (ob- qhov seem ) disk hauv lub dav hlau yog 1- kheej kheej , peb- qhov seem ciam teb ntawm ib (four- qhov seem ) 4 - pob hauv plaub- qhov seem Euclidean yog 3- kheej kheej , kuj lub npe hu ua ib glome.

Puas yog Pob 3 Dimension?

ρα-sphaira, "lub ntiaj teb, pob ") yog cov khoom geometrical hauv peb - qhov seem qhov chaw uas yog qhov chaw ntawm a pob (viz., analogous rau cov khoom ncig hauv ob qhov ntev , qhov twg "lub voj voog" circumscribes nws "disk").

Pom zoo: