ADV kev ua haujlwm thiab kev ua qauv yog dab tsi?
ADV kev ua haujlwm thiab kev ua qauv yog dab tsi?

Video: ADV kev ua haujlwm thiab kev ua qauv yog dab tsi?

Video: ADV kev ua haujlwm thiab kev ua qauv yog dab tsi?
Video: Yuav tawm ntawm txoj kev txom nyem tau li cas? 2024, Kaum ib hlis
Anonim

Advanced Functions thiab Modeling (AFM) yog ib chav kawm lej hauv tsev kawm theem siab tshiab uas muaj nyob hauv North Carolina pib thaum lub caij nplooj zeeg xyoo 2004. AFM tau tsom mus rau kev thov muaj nuj nqi dhau kev ua qauv . Cov tub ntxhais kawm kawm los daws cov teeb meem uas siv cov kev txawj analytical, lub tswv yim yuav tshwm sim, thiab muaj nuj nqi.

Ntawm no, nws txhais li cas los ua haujlwm?

Technical definition ntawm a muaj nuj nqi yog: ib qho kev sib raug zoo los ntawm ib txheej ntawm cov khoom nkag mus rau ib txheej ntawm cov zis tawm uas txhua qhov kev tawm tswv yim muaj feem cuam tshuam rau ib qho kev tso tawm. Peb tuaj yeem sau nqe lus tias f yog a muaj nuj nqi los ntawm X rau Y siv lub muaj nuj nqi F: X → Y.

vim li cas cov haujlwm tseem ceeb hauv lej? Vim peb pheej ua txoj kev xav txog kev vam khom ntawm qhov ntau hauv cov xwm txheej thiab tib neeg, muaj nuj nqi yog tseem ceeb cov cuab yeej hauv kev tsim kho ntawm lej qauv. Hauv tsev kawm ntawv lej , muaj nuj nqi feem ntau muaj cov lej inputs thiab outputs thiab feem ntau txhais los ntawm ib qho kev qhia algebraic.

Ib yam li ntawd ib tug yuav nug, dab tsi yog algebraic functions?

A muaj nuj nqi yog ib qho kev sib npaug uas tsuas muaj ib lo lus teb rau y rau txhua x. A muaj nuj nqi assigns raws nraim ib qhov tso zis rau txhua input ntawm ib hom kev teev tseg. Nws yog feem ntau hu ua a muaj nuj nqi f(x) lossis g(x) tsis yog y. f(2) txhais tau hais tias peb yuav tsum nrhiav tus nqi ntawm peb muaj nuj nqi thaum x 2.

Koj yuav daws tau qhov ua haujlwm li cas?

Rau muaj nuj nqi , ob lub ntsiab lus txhais tau hais tias tib yam nkaus, tab sis "f (x)" muab rau koj yooj yim dua thiab cov ntaub ntawv ntau ntxiv. Koj tau hais tias "y = 2x + 3; daws rau y thaum x = –1” Tam sim no koj hais "f (x) = 2x + 3; nrhiav f (–1)" (hais tias "f-ntawm-x sib npaug 2x ntxiv rau peb; nrhiav f-of-negative-one").

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