Lub ntsiab lus ntawm dav hlau geometry yog dab tsi?
Lub ntsiab lus ntawm dav hlau geometry yog dab tsi?

Video: Lub ntsiab lus ntawm dav hlau geometry yog dab tsi?

Video: Lub ntsiab lus ntawm dav hlau geometry yog dab tsi?
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Hauv lej, a dav hlau yog ib lub tiaj, ob-seem nto uas txuas mus infinitely deb. A dav hlau yog ob-dimensional analogue ntawm ib tug point (zero dimensions), ib kab (ib dimension) thiab peb-dimensional qhov chaw.

Tsis tas li ntawd, lub dav hlau nyob rau hauv cov piv txwv geometry yog dab tsi?

A dav hlau extends infinitely nyob rau hauv ob qhov ntev. Ib piv txwv ntawm a dav hlau yog ib qho kev sib koom tes dav hlau . A dav hlau yog lub npe los ntawm peb lub ntsiab lus hauv dav hlau uas tsis nyob rau tib kab. Hauv qab no peb pom tus dav hlau ABC. Ib qhov chaw txuas mus tsis kawg nyob rau hauv tag nrho cov lus qhia thiab yog ib txheej ntawm tag nrho cov ntsiab lus nyob rau hauv peb qhov ntev.

Ib yam li ntawd, lwm lub npe rau lub dav hlau geometry yog dab tsi? Lwm yam npe rau dav hlau Ib yog dav hlau BCD thiab dav hlau CDE. b. Cov ntsiab lus C, E, thiab D nyob ntawm tib kab, yog li lawv yog collinear. Cov ntsiab lus B, C, E, thiab D yog tib yam dav hlau , yog li lawv yog coplanar.

Raws li, lub dav hlau geometry puas zoo ib yam li geometry?

Lub ntiaj teb nyob ib ncig ntawm peb yog pom tseeb peb-dimensional, muaj qhov dav, qhov tob thiab qhov siab, Khoom geometry cuam tshuam nrog cov khoom nyob rau hauv qhov chaw xws li lub cubes thiab spheres. Dav hlau geometry deals ntawm cov khoom uas tiaj tus, xws li daim duab peb sab thiab kab, uas tuaj yeem kos rau ntawm daim ntawv tiaj tus.

Koj txhais li cas lub dav hlau?

Hauv lej, a dav hlau yog ib lub tiaj, ob-seem nto uas txuas mus infinitely deb.

Cov dav hlau embedded nyob rau hauv peb-dimensional Euclidean qhov chaw

  1. Peb cov ntsiab lus tsis-collinear (cov ntsiab lus tsis nyob ntawm ib kab).
  2. Ib kab thiab taw tes tsis nyob ntawm kab ntawd.
  3. Ob txoj kab sib txawv tab sis sib tshuam.
  4. Ob kab sib luag.

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