Nqe . (mathematics) Muab cov matrix los ntawm qhov ua ntej uas tsis yog kev sib txuas.
Dab tsi yog Premultiply?
Multiplying txhais tau tias npog. "Premultiplied alpha" lossis "premultiplied duab" txhais tau tias cov duab xim tau npog (ntau ntxiv) los ntawm nws tus kheej alpha channel; twb tau npog lawm.
Thaum twg los ua ntej muab ntau thiab tshaj tawm?
Yog li ntawd, nws yog ib qho uas siv cov lus "pre-multiplication" thiab "post-multiplication." Thaum peb hais tias " A yog tom qab sib npaug los ntawm B," lossis "B yog ua ntej muab los ntawm A," peb hais txog cov khoom AB. Thaum peb hais tias "B yog tom qab multiplied los ntawm A," lossis "A yog ua ntej los ntawm B," peb hais txog cov khoom BA.
Dab tsi yog qhov ua ntej thiab tshaj tawm qhov sib npaug ntawm matrices?
Nws yog ib txwm siv cov lus "pre-multiplication" thiab "post-multiplication" hauv kev sib npaug ntawm matrices. " A yog tom qab muab faib los ntawm B, "los yog "B yog ua ntej muab los ntawm A," yog hais txog cov khoom AB. "B yog post-multiplied by A," los yog "A yog pre-multiplied by B," yog hais txog cov khoom BA.
Post multiplication of matrices yog dab tsi?
Postmultiplication ntawm ib tug matrix A los ntawm kab pheeb ces kaum matrix D tshwm sim nyob rau hauv ib tug matrix nyob rau hauv uas txhua qhov nkag rau hauv ib kem muab yog cov khoom ntawm tus thawj nkag rau hauv Ib tug sib raug mus rau kem ntawd thiab cov kab pheeb ces kaum nyob rau hauv cov kab sib txuas ntawm kab pheeb ces kaum matrix.
