Dab tsi yog D hauv calculus?
Dab tsi yog D hauv calculus?

Video: Dab tsi yog D hauv calculus?

Video: Dab tsi yog D hauv calculus?
Video: yog hmoov dab tsi. Zoo Xyooj (cover) 2024, Kaum ib hlis
Anonim

Cov d Nws tus kheej tsuas yog sawv cev los qhia tias qhov twg yog qhov sib txawv ntawm qhov sib txawv ntawm qhov derivative (x) thiab qhov twg yog qhov ua haujlwm rau qhov uas tus derivative raug coj (y).

Kuj paub, dab tsi yog qhov D sawv cev rau hauv derivatives?

Feem ntau qhov tsis meej pem tshaj plaws rau cov tub ntxhais kawm qhia txog qhov sib txawv yog qhov cim nrog nws. Ib hom ntawv sau rau derivatives yog qee zaum hu ua prime notation. Qhov muaj nuj nqi f ´(x), uas yuav tau nyeem `` f -prime ntawm x '', txhais tau tias tus derivative ntawm f (x) nrog rau x.

Ib tug kuj yuav nug, dab tsi yog qhov D hauv qhov sib npaug sib txawv? Keeb Kwm teb: Dab tsi ua tsab ntawv d hauv kev sib txawv equation mean ? Cov ' d ' txhais tau tias Δ nyob rau hauv qhov txwv zero. Qhov no yog qhov thib ob kev sib npaug sib txawv xav tias F ua tsis nyob ntawm kev txiav txim siab dua.'

Hais txog qhov no, D hauv dy dx yog dab tsi?

Cov d hauv dy / ua dx sawv tsis muaj dab tsi. Nws yog lub cim d / dx kev uas yog lub ntsiab lus hauv cov ntsiab lus no. Cov ntawv lej ua dy / dx kev yuav tsum beread li " d / ua dx ntawm y" thiab tsis " ua dy los ntawm dx kev ", uas yog utterly misleading.

Tus U txhais li cas hauv calculus?

Lub union cim () qhia txog lub union ntawm ob txheej s. Nws yog feem ntau siv hauv lej thiab engineering. Muab ob pawg A thiab B, kev sib koom ua ke ntawm A thiab B, sau A B, yog lub teeb C ntawm cov ntsiab lus uas nyob hauv A lossis hauv B.

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