Geometric daim duab, los sis Geometry pib dab tsi?

Ntau tus neeg tau ua yuam kev ntseeg tias thawj zaug lawv ntsib cov duab geometric hauv high school. Muaj lawv kawm lawv cov npe, cov khoom thiab cov qauv. Tab sis qhov tseeb, los ntawm cov me nyuam yaus, txhua yam khoom uas tus me nyuam pom, xav, smells, los yog sib cuam tshuam nrog nws lwm txoj kev, yog qhov tseeb ntawm daim duab geometric. Lub couch ntawm tus poj niam tshiab khiv pw - lub duab plaub, ib lub teeb, uas muab obstetricians ib lub teeb - ib daim duab puag ncig, qhov rai qhov chaw - plaub fab. Daim ntawv teev npe no tseem muaj txuas ntxiv mus tas li.

Geometric cov nuj nqis, ncaj qha raws li lub tswv yim ntawm science, yog thawj zaug ntsib rau cov menyuam kawm ntawv hauv cov chav kawm theem nrab. Koj tuaj yeem hais tias geometry pib nrog lawv. Txawm li cas los xij, raws li tau hais los saum no, thawj cov kev sib tshuam nrog lawv tshwm sim ua ntej ntawd. Noj, piv txwv, ib qho chaw. Nws yog tus duab me tshaj hauv geometry. Tsis tas li ntawd xwb, nws yog qhov pib ntawm txhua tus so (xws li atoms in chemistry). Tag nrho cov vaj tse peb ceg, qhov sib xyaw thiab lwm cov duab nyob hauv cov duab kos muaj cov txheej ntsiab lus. Lawv muaj qee cov khoom, txhua yam ntawm cov khoom tsim nyog tsuas yog hauv ib daim duab (tsis muaj lwm tus yuav tsum tau nrog lawv).

Nws muaj peev xwm xav tias tag nrho cov nuj nqis geometric ncaj qha ntawm cov kab, tab sis dab tsi yog nws? Qhov no yog txheej ntsiab lus teem caij sib dhos. Lawv tuaj yeem txuas ntxiv mus tas li, vim tias txoj kab ncaj nraim tsis xaus. Yog hais tias nws yog bounded los ntawm ob sab, ces nws feem ntau hu ua ib qho ntu. Yog tias tsuas muaj ib txoj kev txwv, ces muaj ib txoj kab rau pem hauv ntej ntawm koj. Yog li ntawd, tag nrho cov qauv duab nyob hauv geometry muaj feem xyuam, vim cov khoom muaj ob qho kawg thiab qhov pib. Nws yuav tsum tau sau tseg tias txoj kab ncaj nraim, uas tau muab faib los ntawm ib qho chaw, ob sab ua ke kom rov qab sab.

Geometry tsis yog tsuas yog los ntawm dav hlau cov ntsiab lus, tab sis kuj muaj cov duab geometric uas muaj peb sab. Los kawm txog lawv tom tsev kawm ntawv lawv pib dua tom qab lawv kawm tiav, tab sis tus neeg ntsib lawv, dua, ntau dhau los. Piv txwv, thaum me nyuam nqa ib lub thawv, nws tuav ib lub voos xwm txheej nyob rau hauv xib teg ntawm nws txhais tes. Los yog, yog tias nws ntsia ntawm lub dresser, ces nyob rau hauv pem hauv ntej ntawm nws yog ib tug rectangular parallelepiped. Tag nrho cov duab peb tshwm sim muaj xws li dav hlau (uas yog, nws yog lub tswv yim tsis paub tseeb, nrog rau txoj kab ncaj ncaj). Tib lub sijhawm uas muaj li ntawm rau cov ntsiab lus no. Koj tuaj yeem visually pom lub dav hlau ntawm saib qhov saum npoo ntawm txhua lub rooj. Tab sis qhov no yuav tsuas yog ib feem ntawm nws, vim muaj cov kev txwv. Lub dav hlau nws tus kheej yog li infinite raws li txoj kab ncaj nraim.

Yog li, tsis muaj ib qho twg qhov twg geometric cov duab tsis tau ntsib. Lawv cov npe txawv, lawv txiav txim siab cov khoom thiab cov yeeb yam. Piv txwv li, cov mis ntawm daim duab peb sab hauv cheeb tsam yog tsis haum rau ib tug duab plaub los yog square.

Nws yog ib qho tsim nyog kom xa tus me nyuam mus rau cov duab geometric thaum ntxov hnub nyoog kawm ntawv. Koj tuaj yeem ua rau koj tus kheej, thiab tom qab ntawd kis tau lawv cov duab sib txawv ntawm daim ntawv (yog tias nws yog cov ntsiab lus ncaj nraim). Txawm li cas los xij, tsis txhob tso rau ntawm cov duab peb sab. Nyob rau hauv Internet koj yuav nrhiav tau ib tug ntau yam ntawm kev kawm ua si, nrog nws. Tab sis koj tsis tuaj yeem paub zoo nrog lawv, vim txhua yam uas peb pom - geometric duab. Txawm tias ib tug neeg muaj lawv!