Video: Dab tsi yog kev tswj xyuas hauv Cartesian dav hlau?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cartesian coordinates ntawm dav hlau
Lub hauv paus chiv keeb yog kev sib tshuam ntawm x thiab y-axes. Cov Cartesian coordinates ntawm ib qho point hauv dav hlau sau li (x, y). Cov x- koom tes qhia qhov kev ncua deb mus rau sab xis (yog tias x yog qhov zoo) lossis sab laug (yog tias x tsis zoo) ntawm y-axis.
Ntawm no, Cartesian ua haujlwm nrog piv txwv yog dab tsi?
Cov Cartesian kev tswj hwm system siv kab rov tav axis hu ua x-axis thiab ntsug axis hu ua y-axis. Kev sib npaug rau kab hauv qhov system no yuav muaj ob qho tib si x thiab y sib txawv. Rau piv txwv y = 2 x + y = 2 piv txwv ntawm ib kab hauv qhov system no.
Dab tsi yog qhov txawv ntawm Cartesian dav hlau thiab lub dav hlau sib koom tes? Cov Cartesian dav hlau qee zaum hu ua x-y dav hlau lub tswj lub dav hlau thiab yog siv los npaj cov ntaub ntawv ua khub ntawm ob kab daim duab . Cias muab, ho, lub Cartesian dav hlau yog tiag tiag tsuas yog ob tus lej kab uas ib qho yog ntsug thiab lwm qhov kab rov tav thiab ob qho tib si tsim cov kaum sab xis nrog ib leeg.
Ntawm no, lub dav hlau Cartesian yog dab tsi?
A Cartesian dav hlau (lub npe tom qab Fabkis tus lej lej Rene Descartes, leej twg formalized nws siv hauv lej) yog txhais los ntawm ob kab kab zauv: x-axis, uas yog kab rov tav, thiab y-axis, uas yog ntsug. Siv cov axes no, peb tuaj yeem ua tau piav ib qho point hauv lub dav hlau siv ib khub ntawm tus lej.
Yuav ua li cas koj nrhiav tau lub coordinates ntawm ib tug point?
Kom paub qhov coordinates ntawm ib tug point hauv koom tes system koj ua qhov opposite. Pib ntawm qhov taw tes thiab ua raws txoj kab ntsug nce lossis nqis mus rau x-axis. muaj koj x- koom tes . Thiab tom qab ntawd ua tib yam tab sis ua raws kab kab rov tav kom pom y- koom tes.
Pom zoo:
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