Video: Dab tsi yog qhov ceev ntawm daim duab?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Thaum rau qhia yooj yim daim duab , cov graph ceev yog txhais tias D=|E||V|(|V|−1), where |E| yog tus lej ntawm ntug thiab |V| yog tus naj npawb ntawm vertices hauv daim duab . Nco ntsoov tias qhov siab tshaj plaws ntawm cov npoo yog |V|(|V|−1)2.
Tsis tas li ntawd, koj yuav pom qhov ceev ntawm daim duab li cas?
Koj ua tau xam qhov ceev los ntawm kev faib qhov loj ntawm ib yam khoom los ntawm ntim. Nyob rau hauv ib tug loj piv rau ntim daim duab , qhov loj yog nyob ntawm y-axis, thiab ntim yog nyob rau ntawm x-axis. Koj tuaj yeem siv hom no daim duab rau xam qhov ceev los ntawm kev txiav txim siab txoj kab nqes, uas yog qhov hloov pauv hauv y faib los ntawm kev hloov pauv hauv x.
Tsis tas li ntawd, qhov ceev ntawm daim duab H yog dab tsi? Cov ceev ntawm nra H yog ρ = E/V. Lus txhais 2.
Ib yam li ntawd, tib neeg nug, graph density txhais li cas?
Nyob rau hauv lej, ib tug ntom daim duab yog a daim duab nyob rau hauv uas tus naj npawb ntawm cov npoo yog ze rau qhov siab tshaj plaws ntawm cov npoo. Qhov opposite, a daim duab tsuas muaj ob peb ntug xwb, yog sparse daim duab . Qhov sib txawv ntawm sparse thiab ntom daim duab yog es vague, thiab nyob ntawm cov ntsiab lus teb.
Yuav ua li cas koj xam qhov ceev?
Yuav nrhiav tau ceev ntawm txhua yam khoom, koj yuav tsum paub qhov Mass (grams) ntawm cov khoom, thiab nws qhov Volume (ntsuas hauv mL lossis cm³). Faib qhov loj los ntawm ntim thiaj li yuav tau txais ib yam khoom Qhov ntom.
Pom zoo:
Qhov txawv ntawm daim ntawv qhia thiab daim duab yog dab tsi?
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