2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Ib qho kev daws teeb meem lossis piv txwv tias is ridulously yooj yim thiab tsis txaus siab. Feem ntau, cov kev daws teeb meem lossis cov piv txwv uas muaj tus lej 0 yog suav tias yog qhov tsis tseem ceeb. Cov kev daws teeb meem tsis yog xoom lossis piv txwv yog suav tias yog qhov tsis tseem ceeb. Piv txwv li, qhov sib npaug x + 5y=0 muaj qhov tsis txaus ntseeg x=0, y=0.
Puas yog qhov kev daws teeb meem tsis tseem ceeb?
Kev daws teeb meem tsis yooj yim yog a cov lus qhia. Piv txwv li, rau homogeneous linear equation 7x + 3y−10z=0 nws yuav yog qhov tsis tseem ceeb los nrhiav / txheeb xyuas tias (1, 1, 1) yog kev daws teeb meem. Tab sis lo lus tsis tseem ceeb yog tshwj xeeb rau kev daws teeb meem suav nrog xoom qhov tseem ceeb rau txhua qhov sib txawv.
Yuav ua li cas rau kev daws qhov tsis tseem ceeb?
A nxn homogeneous system ntawm kab zauv sib npaug muaj ib qho kev daws teeb meem (cov tshuaj tsis tseem ceeb) yog tias thiab tsuas yog tias nws qhov kev txiav txim siab tsis yog xoom. Yog tias qhov kev txiav txim siab no yog xoom, ces lub kaw lus muaj cov kev daws teeb meem tsis kawg.
txhais li cas rau kev daws qhov tsis tseem ceeb?
"tsis tseem ceeb" kuj tuaj yeem siv los piav qhia cov kev daws teeb meem rau qhov sib npaug uas muaj cov qauv yooj yim, tab sis rau qhov ua tiav tsis tuaj yeem tshem tawm. Cov kev daws teeb meem no yog hu ua cov kev daws teeb meem tsis tseem ceeb. Piv txwv li, xav txog qhov sib npaug sib txawv.
Koj txhais li cas los ntawm kev daws teeb meem tsis tseem ceeb?
1. tsis tseem ceeb. 2. lej. sau ib qho kev daws teeb meem ntawm kab zauv kab zauv uas tus nqi tsawg kawg yog ib qho kev sib txawv ntawm qhov sib npaugtsis sib npaug rau xoom.
Pom zoo:
Ntawm yog lo lus rau qhov kev sib faib nruab nrab hauv kev daws teeb meem?
Lub kua yog cov khoom uas yaj. Lub solvent is the dissolving medium. Lub sij hawm yog dab tsi rau qhov kev sib faib nruab nrab hauv pawg kev daws teeb meem ntawm cov lus teb xaiv? solvent. dissolving nruab nrab nyob rau hauv ib tug tov.
Dab tsi yog qhov txawv ntawm kev paub daws teeb meem thiab kev kos duab tsis yog sawv cev?
Cov duab kos duab yog ib txwm txuas nrog ib yam dab tsi pom los ntawm lub ntiaj teb tiag. … Cov duab uas tsis yog sawv cev tsuas yog piav txog cov duab, xim, kab, thiab lwm yam, tab sis kuj tseem tuaj yeem nthuav tawm yam uas tsis pom – kev xav lossis kev xav piv txwv.
Dab tsi yog qhov tseem ceeb thiab vim li cas nws tseem ceeb los txheeb xyuas koj qhov tseem ceeb?
Qhov tseem ceeb yuav coj koj hauv kev txiav txim siab hauv lub neej thiab ua rau koj taug qab. Qhov tseem ceeb tshaj plaws, qhov tseem ceeb tshaj plaws yuav ua rau koj ntseeg siab hais tias "tsis yog." Lawv pab koj txheeb xyuas qhov xav tau tiag tiag hauv koj lub neej, piv rau lwm tus xav tias tseem ceeb.
Leej twg yog tus tswv ntawm cov kev daws teeb meem kev noj qab haus huv?
Dave Myers, uas yog tus thawj coj saib xyuas cov neeg siv khoom rau Seneca, yuav raug tsa los ua tus thawj tswj hwm thiab tus thawj coj ua haujlwm. Kwv yees li 50 feem pua ntawm Concordance yog los ntawm cov neeg koom nrog yav dhau los hauv Seneca, nrog40 feem pua tus tswv los ntawm MMS cov neeg muaj feem, thiab 10 feem pua ntawm cov neeg koom nrog Kreisers.
Txoj kev tswj hwm twg yog qhov tseem ceeb hauv kev cia siab tias muaj teeb meem?
Feedforward tswj yog yav tom ntej-qhia, lawv sim kuaj xyuas thiab cia siab tias muaj teeb meem lossis kev sib txawv ntawm cov qauv ua ntej lawv tshwm sim. Lawv nyob rau hauv-txheej txheem tswj thiab muaj zog heev, txhoj puab heev nyob rau hauv cov xwm, tso cai rau kho kom raug ua ntej ntawm qhov teeb meem.
