Cov txheej txheem:
Video: Dab tsi yog txhais los ntawm kev sib xyaw linear?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Los ntawm Wikipedia, dawb encyclopedia. Hauv lej, a linear sib xyaw yog ib qho kev qhia tsim los ntawm cov ntsiab lus los ntawm kev sib faib txhua lub sij hawm los ntawm qhov tsis tu ncua thiab ntxiv cov txiaj ntsig (piv txwv li a linear kev sib xyaw ntawm x thiab y yuav yog ib qho kev qhia ntawm daim ntawv ax + los ntawm, qhov twg a thiab b yog qhov qub).
Tsis tas li ntawd, koj ua li cas linear ua ke?
Cov kauj ruam rau kev siv cov kab sib txuas (ntxiv txoj kev)
- Npaj cov kev sib npaug nrog cov ntsiab lus zoo li hauv kab.
- Txheeb xyuas cov coefficients ntawm x lossis y.
- Ntxiv qhov sib npaug thiab daws rau qhov sib txawv ntxiv.
- Hloov tus nqi rau hauv qhov sib npaug thiab daws.
- Tshawb xyuas cov tshuaj.
Tsis tas li ntawd, dab tsi yog qhov sib xyaw ua ke ntawm matrices? A matrix yog a linear kev sib xyaw ntawm yog thiab tsuas yog tias muaj scalars, hu ua coefficients ntawm linear sib xyaw , zoo li. Hauv lwm lo lus, yog tias koj coj ib txheej matrices , koj muab txhua tus ntawm lawv los ntawm scalar, thiab koj ntxiv ua ke tag nrho cov khoom yog li tau, ces koj tau txais ib linear sib xyaw.
Dhau li ntawm no, dab tsi yog linear ua ke ntawm ob vectors?
A linear ua ke ntawm ob los yog ntau dua cov duab yog cov vector tau los ntawm kev ntxiv ob los yog ntau dua cov duab (nrog rau cov lus qhia sib txawv) uas tau muab faib ua cov txiaj ntsig scalar.
Dab tsi yog convex linear sib xyaw?
Hauv convex geometry, ib convex sib xyaw yog a linear sib xyaw ntawm cov ntsiab lus (uas tuaj yeem yog vectors, scalar, lossis ntau dua feem ntau cov ntsiab lus hauv qhov chaw affine) qhov twg tag nrho cov coefficients tsis yog qhov tsis zoo thiab cov lej rau 1.
Pom zoo:
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