Cov neeg siv khoom xav tau txiav txim siab xa khoom, vim nws yog lawv tus kheej qhov kev xav tau uas ua rau cov neeg yuav khoom them nyiaj. Lub zog ntawm qhov tshwm sim no tau txiav txim siab los ntawm ntau yam, yog li ntawd, nrog rau txhua yam hloov pauv, nws yog qhov tsim nyog los nrhiav qhov elasticity ntawm kev thov.
Cov Lus Qhia
Kauj ruam 1
Muaj ib lo lus muaj npe zoo "Thov kom muab khoom txhawb nqa", uas nyob hauv peb cov lus hais txog qhov tsim kom muaj / kev ua lag luam kev sib raug zoo. Qhov ntau tus neeg yuav khoom xav tau, vam khom cov kev zam, xav kom ua raws li kev vam meej, lawv tus kheej zoo nkauj thiab lub cev xav tau, thiab lwm yam, qhov loj dua cov khoom ntim tau tsim los ntawm cov tuam txhab. Hloov siab, sai li sai tau thaum kev thov poob, cov tuam txhab tsim sim sim hloov mus rau lwm yam khoom lossis hloov pauv cov khoom vaj khoom tsev.
Kauj ruam 2
Txhawm rau soj ntsuam kev hloov pauv ntawm kev thov thiab suav lawv ua ntej, koj yuav tsum ua kom sai kev soj ntsuam kev lag luam, tshwj xeeb, suav qhov elasticity. Muaj cov nqi thiab cov nyiaj tau los elasticities ntawm kev thov, zoo li hla elasticities.
Kauj ruam 3
Muaj ntau yam ua rau cuam tshuam txog kev txiav txim siab ntawm cov tuam ntxhab kom nce los yog tus nqi qis. Qhov no yog cov tsos lossis ploj ntawm kev sib tw cov khoom lossis hloov chaw, hloov caij nyoog (khoom noj, ris tsho, kis las ncaws pob, thiab lwm yam), lub neej txee, thiab lwm yam. Tus nqi elasticity ntawm kev thov yog xam raws li coefficients hauv ob txoj kev: taw tes thiab arc.
Kauj ruam 4
Qhov txheej txheem kev xav qhov kev paub ntawm tus nqi ntawm qhov pib ntawm lub sijhawm thiab cov kev xav ua haujlwm, nrog rau cov cai ntawm kev sib txawv. Lub elasticity coefficient yog sib npaug ntawm cov lej sib piv ntawm ob ntau: E = F '(x) • x / F (x), qhov twg: x yog tus nqi; F (x) yog qhov kev ua xav tau los ntawm tus nqi; F' (x) yog thawj qhov kev xav ntawm tus nqi thov …
Kauj ruam 5
Arc elasticity tsuas yog pom yog tias koj muaj cov ntaub ntawv ntawm tus nqi pib thiab thaum kawg thiab qhov ntim khoom coj tau raug. Ntawm qhov thov muaj nuj nqi teeb, koj yuav pom ib tug arc bounded los ntawm cov nqi, yog li lub npe. Yog li, cov qauv rau arc elasticity zoo li no: E = (V2 - V1) / ((V2 + V1) / 2): (P2 - P1) / ((P2 + P1) / 2), qhov twg: V1 thiab V2 yog tagnrho cov khoom lag luam thaum pib thiab xaus ntawm Arc; P1 thiab P2 - tus nqi pib thiab xaus.
Kauj Ruam 6
Cov nyiaj tau ywj pheej yog txiav txim siab tsis yog los ntawm tus nqi, tab sis los ntawm tus neeg yuav khoom cov nyiaj. Cov nqi no nyob ntawm theem ntawm kev nplua nuj, qib kev xav tau (khoom kim heev lossis theem xav tau), thiab lwm yam. Qhov ntsuas qhov ywj pheej no yog txiav txim siab los ntawm qhov sib piv ntawm cov khoom ntawm cov khoom thiab cov nyiaj tau los: E = (V2 - V1) / ((V2 + V1) / 2): (D2 - D1) / ((D2 + D1) / 2), qhov twg: D1 thiab D2 - nyiaj tau los thaum pib thiab thaum kawg ntawm lub sijhawm them nqi.
Kauj Ruam 7
Nws yog qhov nyuaj kom nrhiav tau cov khoom lag luam tshwj xeeb ntawm kev ua lag luam. Feem ntau, txhua tus muaj cov khoom sib txuam lossis cov khoom lag luam uas muaj feem cuam tshuam nrog nws. Piv txwv li, butter thiab margarine yog qhov sib pauv hloov tau, thiab lub khoos phis tawj thiab lub koos pij tawj ua kom tiav. Kev hloov pauv ntawm tus nqi ntawm ib qho ntawm cov khoom lag luam cuam tshuam qhov kev thov rau lwm tus, qhov no hu ua cross elasticity: E = ∆V / ∆P • P / V, qhov twg: P yog tus nqi ntawm ib qho zoo; V yog lub ntim ntawm kev thov rau lub thib ob zoo.
