Cov txheej txheem:
- Yuav suav tus exponential li cas?
- Tus nqi R yog dab tsi hauv kev nthuav tawm ua haujlwm?
- Koj pom e tus nqi hauv R li cas?
- e hauv R hom lus yog dab tsi?
Video: How exponential hauv r?
2024 Tus sau: Fiona Howard | [email protected]. Kawg hloov kho: 2024-01-10 06:38
exp muaj nuj nqi hauv R Lus yog siv los xam lub zog ntawm e i.e. e^y lossis peb tuaj yeem hais exponential ntawm y. Tus nqi ntawm e yog kwv yees sib npaug rau 2.71828….. Parameters: y: Nws yog ib qho siv tau R tus lej zoo lossis tsis zoo.
Yuav suav tus exponential li cas?
Nyob hauv lej, tus nqi exponential ntawm tus lej yog sib npaug rau tus lej tau muab faib los ntawm nws tus kheej ib qho tshwj xeeb ntawm lub sijhawm. Tus lej uas yuav tsum tau muab faib ua nws tus kheej yog hu ua lub hauv paus thiab tus naj npawb ntawm lub sij hawm nws yuav tsum tau muab faib yog tus exponent.
Tus nqi R yog dab tsi hauv kev nthuav tawm ua haujlwm?
Exponential Function
Qhov sib npaug tuaj yeem sau rau hauv daim foos f(x)=a(1 + r)x lossis f(x)=ab x where b=1 + r a yog qhov pib lossis pib tus nqi ntawm kev ua haujlwm, r yog qhov feem pua nce lossis lwj tus nqi, sau ua tus lej, b yog qhov kev loj hlob lossis kev loj hlob ntau ntxiv.
Koj pom e tus nqi hauv R li cas?
Hauv R programming, peb tuaj yeem suav tus nqi ntawm e siv tus exp muaj nuj nqi . Cov haujlwm exp hauv R tuaj yeem xa rov qab tus nqi exponential ntawm tus lej xws li e x. Ntawm no x tau dhau mus rau qhov ua haujlwm raws li qhov ntsuas. x kuj tuaj yeem sawv cev tus lej Vector.
e hauv R hom lus yog dab tsi?
e, (exp(1) hauv R), uas yog lub hauv paus ntawm natural logarithm . Euler's Constant. Euler tus nab npawb.
Pom zoo:
Tus lej exponential yog dab tsi?
Txhawm rau tsim qhov muaj nuj nqi exponential, peb cia tus hloov pauv ywj pheej yog tus lej. Ib qho piv txwv yooj yim yog qhov ua haujlwm f(x)=2x … Nyob rau hauv qhov exponential lwj ntawm g(x), qhov ua haujlwm yuav txo qis hauv ib nrab txhua zaus koj ntxiv ib qho rau nws cov tswv yim x .
Puas yog exponential muaj nuj nqi txuas ntxiv?
Yog li nco ntsoov txhua lub zog ua haujlwm yog txuas ntxiv. Tom qab ntawd tag nrho cov exponential functions yog nruam piv txwv f ntawm x sib npaug 3 rau x g ntawm x sib npaug 10 rau x, h ntawm x sib npaug e rau x. Tag nrho cov haujlwm no tag nrho cov exponential functions yog txuas mus rau txhua qhov chaw .
Dab tsi yog qhov txawv ntawm kab sib npaug thiab tus lej exponential?
Linear functions yog graphed raws li cov kab ncaj nraim thaum exponential functions yog nkhaus. Linear functions feem ntau yog nyob rau hauv daim ntawv y=mx + b, uas yog siv los tshawb pom txoj kab nqes, los yog tsuas yog qhov kev hloov hauv y faib los ntawm kev hloov hauv x, thaum exponential functions feem ntau nyob rau hauv daim ntawv y=(1 + r) x Koj qhia li cas yog tias nws yog linear lossis exponential?
Puas yog exponential functions linear?
Linear functions yog kab ncaj thaum exponential functions yog cov kab nkhaus. Koj tuaj yeem paub lawv los ntawm kev hloov pauv hauv y. Yog tias tib tus lej raug ntxiv rau y, ces qhov kev ua haujlwm muaj qhov hloov pauv tas li thiab yog linear.
Qhov twg exponential muaj nuj nqi sawv cev rau kev loj hlob?
Muaj ob hom exponential functions: exponential kev loj hlob thiab exponential decay. Hauv function f (x)=b x thaum b > 1, txoj haujlwm sawv cev rau kev loj hlob . Yuav ua li cas sib npaug piv rau kev loj hlob exponential? Kev ua haujlwm yog ntawm daim ntawv y=a(1 + r)t, qhov twg 1 + r >
