Video: Yuav ua li cas koj pom qhov orientation ntawm parametric equation?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov kev taw qhia ntawm lub dav hlau nkhaus raws li cov parameter nce yog hu ua kev taw qhia ntawm nkhaus . Cov kev taw qhia ntawm ib lub dav hlau nkhaus tuaj yeem sawv cev los ntawm cov xub kos raws tus nkhaus . Tshawb xyuas cov duab hauv qab no. Nws yog txhais los ntawm cov kev sib npaug parametric x = cos(t), y = sin(t), 0≦t < 2Π.
Ntawm no, ua li cas koj paub qhov kev taw qhia ntawm ib daim duab?
Txhua daim duab muaj acyclic kev taw qhia ; tag nrho acyclic kev taw qhia tuaj yeem tau txais los ntawm kev tso cov vertices rau hauv ib ntus, thiab tom qab ntawd coj txhua tus ntug los ntawm qhov ua ntej ntawm nws qhov kawg ntawm qhov sib lawv liag mus rau qhov kawg tom qab.
Tsis tas li ntawd, qhov parameterization yog dab tsi? Hauv kev ua lej, thiab tshwj xeeb tshaj yog hauv geometry, parameterization (los yog parameterization ; kuj parameterisation , parametrisation) yog tus txheej txheem ntawm kev nrhiav parametric equations ntawm ib tug nkhaus, ib tug nto, los yog, feem ntau, ib tug manifold los yog ntau yam, txhais los ntawm ib tug implicit equation.
Tom qab ntawd, dab tsi yog parametric graph?
Yog li ntawd, a parametric nkhaus yog txhais raws li ob txoj haujlwm sib cais rau -coordinates thiab -coordinates ntawm nkhaus nyob rau hauv ib tug thib peb variable hu ua parameter. Feem ntau cov parameter "" yog siv thiab feem ntau yog siv los sawv cev rau "lub sij hawm" raws li ib tug particle traverses ib tug nkhaus.
Dab tsi yog vector equation?
Vector Equation ntawm ib txoj kab ncaj Tus cartesian kev sib npaug rau txoj kab ncaj nraim yog y = mx + c, qhov m sawv cev rau gradient ntawm kab, thiab c yog qhov taw tes uas kab hla y-axis. A vector sib npaug rau ib kab zoo ib yam xav tau 2 daim ntaub ntawv: Ib qho taw qhia ntawm kab. Kev taw qhia ntawm kab.
Pom zoo:
Yuav ua li cas koj pom qhov ntsuas qhov ntsuas ntawm dilation ntawm lub dav hlau ua haujlwm?
Daim duab peb sab ABC nrog kev ua haujlwm A(2, 6), B(2, 2), C(6, 2). Tom qab ntawd dilate daim duab los ntawm qhov ntsuas qhov ntsuas ntawm 1/2 nrog lub hauv paus los ua qhov nruab nrab ntawm dilation. Ua ntej, peb kos peb daim duab peb sab qub hauv lub dav hlau ua haujlwm. Tom ntej no, peb muab txhua qhov kev sib koom tes los ntawm qhov ntsuas qhov ntsuas ntawm 1/2
Dab tsi yog qhov txawv ntawm qhov pom tseeb qhov loj thiab qhov ntsuas qhov ntsuas qhov tseeb?
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X = [Fe(SCN)2+] thiab yuav tsum tau txiav txim los ntawm tus qauv nkhaus. Tom qab ntawd koj tuaj yeem xam qhov sib npaug tas li, Keq, siv qhov sib npaug sib npaug. Tus qauv nkhaus yog ib zajlus ntawm Absorbance piv [Fe(SCN)2+] (Daim duab 8.1). Nws tuaj yeem siv los muab peb cov concentration ntawm cov tshuaj thaum muab cov absorbance