Cov txheej txheem:
Video: Koj yuav daws tau qhov teeb meem linear programming li cas los ntawm txoj kev ntawm cov ces kaum?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
LUB Txoj kev ntawm kaum Teeb tsa qhov ua tau (thaj chaw), S. Nrhiav tus EXACT coordinates ntawm tag nrho cov vertices ( ces kaum cov ntsiab lus) ntawm S. Ntsuas lub hom phiaj muaj nuj nqi, P, ntawm txhua qhov vertex Qhov siab tshaj plaws (yog tias muaj) yog tus nqi loj tshaj plaws ntawm P ntawm vertex. Qhov tsawg kawg nkaus yog qhov tsawg tshaj plaws tus nqi ntawm P ntawm vertex.
Tom qab ntawd, ib tug kuj yuav nug, dab tsi yog txoj hauv kev los daws LPP?
Graphical Method ntawm kev daws teeb meem Linear Programming
- Cov yeeb yaj kiab pom zoo.
- Kauj Ruam 1: Tsim cov LP (Linear programming) teeb meem.
- Kauj Ruam 2: Tsim ib daim duab thiab npaj cov kab txwv.
- Kauj Ruam 3: Txiav txim siab qhov siv tau ntawm txhua txoj kab txwv.
- Kauj Ruam 4: Txheeb xyuas thaj tsam kev daws teeb meem ua tau.
- Kauj Ruam 5: Teeb lub hom phiaj ua haujlwm ntawm daim duab.
- Kauj ruam 6: Nrhiav qhov zoo tshaj plaws point.
Dab tsi yog txoj hauv kev algebraic hauv linear programming? Algebra thiab Simplex Txoj kev . A linear programming teeb meem (LP) ib teeb meem optimization qhov twg tag nrho cov hloov pauv tsis tu ncua, lub hom phiaj yog a kab tawm (nrog rau qhov kev txiav txim siab sib txawv) muaj nuj nqi, thiab thaj tsam ua tau yog txhais los ntawm tus lej kawg ntawm kab tawm tsis sib npaug los yog sib npaug.
Ntawm no, koj ua li cas xam cov ntsiab lus ntawm cov kab hauv kab?
Cov kaum cov ntsiab lus yog cov vertices ntawm cheeb tsam ua tau. Thaum koj muaj daim duab ntawm qhov system ntawm kab tawm kev tsis sib xws, tom qab ntawd koj tuaj yeem saib daim duab thiab yooj yim qhia qhov twg kaum cov ntsiab lus yog. Tej zaum koj yuav tau daws ib qhov system ntawm kab tawm sib npaug rau nrhiav ib co ntawm cov coordinates ntawm lub cov ntsiab lus nyob nruab nrab.
Txoj kev daws teeb meem ntawm kaum point yog dab tsi?
Cov kaum point daws txoj kev muaj plaub cov kauj ruam tseem ceeb:: Txiav txim siab qhov kev sib koom tes ntawm txhua qhov vertex ( kaum point ) ntawm thaj tsam ua tau.: Xam tus nqi ntawm lub hom phiaj ua haujlwm ntawm txhua kaum point .: Tsim lub hom phiaj ua haujlwm nrog tus nqi siab tshaj plaws.
Pom zoo:
Cov kab lus hloov sab hauv cov ces kaum piav qhia txoj haujlwm ntawm ob lub kaum sab xis li cas?
Hloov sab hauv cov ces kaum yog tsim los ntawm ib tug transversal intersecting ob parallel kab. Lawv nyob nruab nrab ntawm ob qho tib si kab tab sis nyob rau sab nraud ntawm lub transversal, tsim ob khub (plaub tag nrho cov ces kaum) ntawm cov ces kaum sab hauv. Hloov cov ces kaum sab hauv yog congruent, txhais tau tias lawv muaj qhov sib npaug
Yuav ua li cas koj nrhiav tau qhov kev daws teeb meem rau ib khub xaj?
Txhawm rau txheeb xyuas yog tias tus khub txiav txim yog qhov kev daws teeb meem rau qhov sib npaug, koj tuaj yeem ua qhov kev sim. Txheeb xyuas qhov x-tus nqi hauv tus khub xaj thiab ntsaws rau hauv qhov sib npaug. Thaum koj ua kom yooj yim, yog tias tus y-tus nqi koj tau txais yog tib yam li y-tus nqi hauv tus khub xaj, ces tus khub txiav txim yog qhov kev daws teeb meem rau qhov sib npaug
Yuav ua li cas koj nrhiav tau tus kab pheeb ces kaum ntawm txoj cai kaum sab xis?
Txhawm rau nrhiav qhov ntev ntawm kab pheeb ces kaum (orhypotenuse) ntawm txoj cai daim duab peb sab, hloov qhov ntev ntawm ob sab perpendicular rau hauv cov mis a2 + b2 = c2, qhov twg a thiab b yog qhov ntev ntawm sab perpendicular thiab c yog qhov ntev ntawm lub hypotenuse
Koj yuav daws qhov teeb meem txoj kab nqes li cas?
Txheeb xyuas txoj kab nqes, m. Qhov no tuaj yeem ua tiav los ntawm kev suav cov nqes hav ntawm ob lub ntsiab lus ntawm txoj kab uas siv cov qauv nqes hav. Nrhiav y-intercept. Qhov no tuaj yeem ua tau los ntawm kev hloov txoj kab nqes thiab cov kev sib koom ua ke ntawm qhov taw tes (x, y) ntawm txoj kab hauv txoj kab nqes-intercept formula thiab tom qab ntawd daws rau b
Puas yog nws ua tau rau ib qho kev sib npaug ntawm ob txoj kab sib npaug kom tsis muaj kev daws teeb meem piav qhia koj qhov laj thawj?
Cov kab ke ntawm kab sib npaug tuaj yeem tsuas muaj 0, 1, lossis ib qho kev daws teeb meem tsis kawg. Ob kab no tsis tuaj yeem hla ob zaug. Cov lus teb raug yog tias qhov system muaj ib qho kev daws teeb meem. Total Number of Points Number of 2-Point Baskets Number of 3-Point Baskets 17 4 (8 ntsiab lus) 3 (9 points) 17 1 (2 points) 5 (15 points)