Txawm hais tias cov ntawv qhia hauv tsev kawm hauv algebra thiab geometry, peb paub tias lub vev xaib yog ib ntu nrog cov kev taw qhia. Cov ua haujlwm ntawm lub vector txiav txim siab nws cov yam ntxwv thiab yog cov raug txiav txim ntawm cov naj npawb. Pom lawv yog qhov yooj yim kiag li, nco ntsoov qee cov ntaub ntawv los ntawm tsev kawm ntawv cov ntawv qhia.
Cov Lus Qhia
Kauj ruam 1
vector coordinates / b "class =" colorbox imagefield imagefield-imagelink "> Muab qhov chaw ntawm Cartesian koom ua ke ntawm qhov pib ntawm lub vev xaib uas koj xav pom. Tom qab ntawd, txhawm rau txhais lub vector coordinate, nrhiav qhov chaw ntawm nws qhov xaus. ib qho kev txiav txim siab mus rau qhov ua kom sib haum ntawm cov kab hluav taws xob X thiab Y. Yog li, koj tau txais cov ntsiab lus ntawm cov vector sib tshuam nrog cov axes. txiav txim siab qhov ua kom sib haum ntawm cov ntsiab lus no. ua kom sib haum ntawm ib lub vector ntawm lub dav hlau
Kauj ruam 2
Yog tias koj xav txiav txim siab ua kom muaj kev sib koom tes ntawm lub vector nyob rau hauv chaw, ua raws li cov ntsiab cai ib yam li nrhiav lawv ntawm lub dav hlau. Cov no yog raws nraim qhov seem tau seem uas muaj qhov pib thiab xaus. Qhov tsuas yog qhov sib txawv yog tias lub vev xaib nyob hauv qhov chaw sau tsis yog los ntawm ob, tab sis los ntawm peb qhov kev sib koom tes x, y thiab z (ntawm lub dav hlau no yog qhov ntev thiab qhov siab, thiab hauv qhov chaw, qhov tob ntxiv rau txhua yam) a (xa; ya; za), qhov twg ib qho cim qhov ntev ntawm cov vector. Yog li, txhawm rau nrhiav qhov ua kom sib haum ntawm vector hauv qhov chaw, koj yuav tsum rho tawm qhov kev sib koom tes ntawm pib ntawm vector los ntawm qhov kawg koom tes. Ua kev suav nrog siv cov qauv: a = AB (xB - xA; yB - yA; zB - zA). Qhov no tsuas yog ib txoj hauv kev los daws teeb meem hauv stereometry (kev kawm ntawm cov duab hauv qhov chaw), uas siv cov qauv yooj yim, cov cai thiab cov txheej txheem. Nws siv sijhawm tsawg kawg thiab yog qhov yooj yim heev.
Kauj ruam 3
Txheeb xyuas qhov ua kom sib haum ntawm lub vev xaib nyob rau hauv qhov chaw nyob rau hauv txoj kev ntawm qhov tseem ceeb, uas yuav xav kom koj muaj kev paub zoo txog theorems thiab axioms ntawm stereometry, lub peev xwm los tsim cov duab kos thiab txo cov teeb meem volumetric rau planimetric sawv daws yuav. Nws yog qhov zoo vim tias nws txig txhim kho lub hlwb thiab kev xav txog qhov dav, tab sis nws yuav siv sijhawm ntau dua thiab, nrog qhov kev ua txhaum me me, muab cov tsis raug. Cov txheej txheem txheej txheem feem ntau yog siv los ntawm cov kws ua haujlwm thaum npaj cov phiaj xwm rau cov tuam tsev yav tom ntej.
