Dab tsi yog mantissa thiab yam ntxwv?
Dab tsi yog mantissa thiab yam ntxwv?

Video: Dab tsi yog mantissa thiab yam ntxwv?

Video: Dab tsi yog mantissa thiab yam ntxwv?
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Qhov tseem ceeb ntawm ib qho logarithm yog hu ua yam ntxwv thiab qhov tsis-negative decimal feem yog hu ua mantissa . Piv txwv li, log 39.2 = 1.5933, ces 1 yog tus yam ntxwv yog 5933 mantissa ntawm lub logarithm.

Nyob rau hauv no txoj kev, dab tsi yog mantissa nrog piv txwv?

Siv mantissa hauv ib kab lus. npe. Lub ntsiab txhais ntawm a mantissa yog ib feem ntawm tus lej nyob tom qab tus lej lej. Ib piv txwv ntawm mantissa yog 234 hauv tus lej 1101.234.

Qhov thib ob, Mantissa puas tuaj yeem ua qhov tsis zoo? Tus yam ntxwv ntawm lub logarithm ntawm tus lej ua tau yuav zoo los yog tsis zoo . Yog li, cov mantissa ib txwm sau ua tus lej zoo piv txwv li, ib feem zoo. Lub bar qhia lub logarithm ntawm tus lej yog tsis zoo thiab yog li ntawd nws yog tus yam ntxwv uas hloov dua siab tshiab rau hauv ib tsis zoo tus lej.

Yog li ntawd, dab tsi yog qhov tseem ceeb ntawm kev siv logarithms?

Logarithms feem ntau yog qhov inverse ntawm exponential muaj nuj nqi. Keeb kwm, cov kws tshawb fawb lej siv logarithms los hloov kev faib thiab sib faib teeb meem rau hauv kev rho tawm thiab ntxiv cov teeb meem, ua ntej nrhiav pom ntawm lub tshuab xam zauv.

Dab tsi yog mantissa hauv scientific notation?

Qhov tseem ceeb (kuj mantissa los yog coefficient, qee zaum kuj sib cav lossis feem) yog ib feem ntawm tus lej hauv scientific notation los yog tus naj npawb floating-point, muaj nws cov lej tseem ceeb. Nyob ntawm qhov kev txhais ntawm tus exponent, qhov tseem ceeb yuav sawv cev rau tus lej lossis ib feem.

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