Cov txheej txheem:
Video: Vim li cas cov nuj nqis tseem ceeb tseem ceeb thaum qhia txog kev ntsuas?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov duab tseem ceeb yog tseem ceeb los qhia qhov tseeb ntawm koj cov lus teb. Qhov no yog tseem ceeb hauv science thiab engineering vim tsis muaj ntsuas ntaus ntawv yuav ua tau ib ntsuas nrog 100% precision. Siv Cov duab tseem ceeb tso cai rau tus kws tshawb fawb paub tias cov lus teb meej npaum li cas, lossis qhov tsis paub meej npaum li cas.
Tsuas yog li ntawd, dab tsi txiav txim siab tus naj npawb ntawm cov nuj nqis tseem ceeb siv hauv kev tshaj tawm cov txiaj ntsig ntsuas?
Muaj peb txoj cai los txiav txim seb muaj pes tsawg tus lej tseem ceeb hauv tus lej:
- Cov lej uas tsis yog xoom yog ib txwm tseem ceeb.
- Ib qho xoom ntawm ob tus lej tseem ceeb yog qhov tseem ceeb.
- Qhov kawg xoom los yog trailing zeros nyob rau hauv cov zauv feem Xwb yog qhov tseem ceeb.
Ib yam li ntawd, 5 Txoj Cai rau cov nuj nqis tseem ceeb yog dab tsi? Cov duab tseem ceeb
- Cov lus piav qhia qeb:
- RULES RAU COV NTAUB NTAWV.
- Txhua tus lej tsis yog xoom yog qhov tseem ceeb.
- Zeros ntawm ob tus lej tsis yog xoom yog qhov tseem ceeb.
- Lead zeros tsis tseem ceeb.
- Trailing zeros mus rau sab xis ntawm tus lej yog qhov tseem ceeb.
- Trailing zeros nyob rau hauv ib tug tag nrho tus lej nrog cov zauv qhia yog qhov tseem ceeb.
Yog li ntawd, lub tswv yim ntawm cov nuj nqis tseem ceeb cuam tshuam li cas rau qhov tsis paub tseeb hauv kev ntsuas?
Cov tsis paub meej hauv a ntsuas yog kev kwv yees ntawm tus nqi uas tus ntsuas qhov tshwm sim yuav txawv ntawm qhov nqi no. Cov duab tseem ceeb qhia qhov tseeb ntawm a ntsuas cuab yeej. Thaum muab faib los yog faib ntsuas qhov tseem ceeb, cov lus teb kawg tuaj yeem muaj ntau npaum li cas cov duab tseem ceeb raws li tus nqi tsawg tshaj plaws.
Vim li cas cov lej tseem ceeb tsis tseem ceeb hauv lej?
12) Vim li cas cov nuj nqis tseem ceeb tsis tseem ceeb thaum daws teeb meem hauv koj lej chav kawm? lej cov chav kawm tsis cuam tshuam nrog cov nqi ntsuas. Raws li qhov tshwm sim, tag nrho cov lej raug suav tias yog qhov tsis muaj tseeb.
Pom zoo:
Vim li cas nws tseem ceeb uas peb txoj kev nkag siab txog kev tshawb fawb txog kev sib raug zoo txuas ntxiv mus?
Kev nthuav dav thiab kev loj hlob ntawm kev tshawb fawb txog kev sib raug zoo yog qhov tsim nyog vim nws pab txhawb koj txoj kev sib raug zoo thiab kev sib raug zoo nrog cov neeg hauv zej zog. Thaum koj nyob nrog cov neeg koj yuav tsum nkag siab lawv thiab social science pab koj ua li ntawd
Cov nqe lus twg zoo tshaj plaws piav qhia txog qhov tseem ceeb ntawm cov lus qhia muaj nuj nqis?
Qhov tsis suav nrog tus nqi ntawm ib qho kev qhia rational yog qhov tseem ceeb uas tus denominator ntawm qhov kev qhia yog xoom. Tsis tas li ntawd, tus naj npawb ntawm zeros ntawm ib tug polynomial yeej ib txwm tsawg dua los yog sib npaug rau degree ntawm lub polynomial. Yog li ntawd, tus naj npawb ntawm cov txiaj ntsig tsis suav nrog cov lus qhia muaj txiaj ntsig tsis tuaj yeem tshaj li qib ntawm tus lej
Cov yam ntxwv ntawm cov ntaub ntawv twg yog qhov ntsuas ntawm tus nqi uas cov ntaub ntawv muaj nuj nqis heev?
Variation: Ib qho kev ntsuas ntawm tus nqi uas cov ntaub ntawv muaj nuj nqis sib txawv. ? Kev faib tawm: Cov xwm txheej lossis cov duab ntawm kev sib kis ntawm cov ntaub ntawv hla ntau qhov tseem ceeb (xws li tswb-puab). ? Outliers: Cov qauv piv txwv uas nyob deb heev ntawm feem ntau ntawm lwm cov qauv nqi
Vim li cas cov haujlwm muaj nuj nqis muaj kev txwv?
Domain txwv tsis pub muaj nuj nqi muaj nuj nqis tuaj yeem txiav txim siab los ntawm kev teeb tsa tus lej sib npaug rau xoom thiab daws. Cov x -values uas tus denominator sib npaug zero yog hu ua singularities thiab tsis nyob rau hauv lub domain ntawm lub functionality
Vim li cas kev ntsuas thiab ntsuas qhov tseem ceeb hauv kev tshawb fawb txog kev lag luam?
Cov nplai tau siv ntau zaus hauv kev tshawb fawb kev lag luam vim tias lawv pab hloov cov ntaub ntawv zoo (xav, kev xav, kev xav) rau hauv cov ntaub ntawv ntau, cov lej uas tuaj yeem txheeb xyuas tau. Koj tsim ib qho kev ntsuas los ntawm kev muab cov khoom (yuav ua tau piav qhia) rau tus lej