Yuav ua li cas thaum koj rho vectors?

2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36

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Rau rho tawm ob cov duab , koj muab lawv ob txhais taw (los yog tails, qhov tsis-pointy) ua ke; ces kos lub resultant vector , uas yog qhov txawv ntawm ob cov duab , los ntawm lub taub hau vector koj 're rho tawm mus rau lub taub hau vector koj 're rho tawm nws los ntawm.

Ib yam li ntawd, yuav ua li cas thaum koj rho ob vectors?

Tshem tawm vectors ua raws li cov txheej txheem tib yam li ntxiv, tsuas yog cov vector ua rho tawm yog "rov qab" nyob rau hauv kev coj. Xav txog qhov qub cov duab a thiab b li saum toj no, tsuas yog peb 'yuav xam a – b. (Nco ntsoov tias qhov no yog tib yam li, qhov twg -b muaj qhov ntev tib yam li b tab sis yog qhov sib txawv ntawm kev coj.)

Ib yam li ntawd, koj yuav rho peb vectors li cas? Rau rho tawm , ntxiv qhov "tsis zoo" ntawm cov vector . Tshem tawm vectors visually yog yooj yim haum. Tsuas yog thim rov qab vector cov kev taw qhia tab sis khaws nws qhov loj tib yam thiab ntxiv rau koj vector taub hau mus rau tus Tsov tus tw raws li koj xav tau. Hauv lwm lo lus, rau rho tawm a vector , tig vector 180^o ib ncig thiab ntxiv nws.

Ua raws li qhov no hauv kev xav, kev rho tawm vectors txhais li cas?

Vector rho tawm yog tus txheej txheem ntawm kev noj a vector sib txawv, thiab yog kev ua haujlwm inverse mus vector ntxiv.

Cov cai rau ntxiv vectors yog dab tsi?

Ntxiv los yog rho ob cov duab , ntxiv los yog rho tawm cov khoom sib xws. Cia →u=?u1,u2? thiab →v=?v1,v2? ua ob cov duab . Qhov sib npaug ntawm ob lossis ntau dua cov duab yog hu ua resultant. Qhov tshwm sim ntawm ob cov duab tuaj yeem pom siv ob qho tib si parallelogram txoj kev lossis txoj kev daim duab peb sab.