Tsiv tus lej mus rau sab xis ua rau tus lej tsis zoo; txav nws mus rau sab laug muab rau koj ib tug zoo exponent. Txhawm rau pom tus exponent uas yog qhov zoo, sau 312, 000, 000, 000 hauv scientific notation: … Vim tias nws yog tus lej tag nrho, tus lej lej tau nkag siab tias yog qhov kawg ntawm tus lej: 312, 000, 000, 000. Yog li, N=3.12.
Yuav ua li cas yog txoj cai sau ntawv scientific?
5 txoj cai ntawm kev tshawb fawb yog dab tsi?
- Lub hauv paus yuav tsum yog 10.
- Tus exponent yuav tsum yog tus lej uas tsis yog xoom, txhais tau tias nws tuaj yeem yog qhov zoo lossis qhov tsis zoo.
- Tus nqi tiag ntawm tus coefficient ntau dua lossis sib npaug 1 tab sis nws yuav tsum tsawg dua 10.
Puas yog scientific notation to number?
Tus qauv tsim nyog rau kev sau ntawv tshawb fawb yog a x 10^b qhov twg a yog tus lej lossis tus lej lej xws li tus nqi tiag tiag ntawm tus lej ntau dua lossis sib npaug rau ib thiab tsawg dua kaum los yog, 1 ≤ |a| < 10. b yog lub hwj chim ntawm 10 yuav tsum tau kom cov scientific notation yog lej sib npaug rau tus lej qub.
Koj puas tuaj yeem faib cov ntawv tshawb fawb los ntawm tus lej tag nrho?
Vim txhua tus lej hauv kev tshawb fawb muaj lub hauv paus 10, peb tuaj yeem muab faib ua lawv thiab faib lawv. Txhawm rau muab ob tus lej hauv kev tshawb fawb, muab lawv cov coefficients sib npaug thiab ntxiv lawv cov exponents. Txhawm rau faib ob tus lej hauv kev tshawb fawb, faib lawv cov coefficients thiab rho tawm lawvexponents.
Dab tsi yog qhov scientific notation ntawm 19 puas txhiab?
Teb: Dab tsi yog qhov kev tshawb fawb ntawm 'kaum pua txhiab'? Yog li ntawd, 19 puas-thusandths yuav yog 10 ib puas-thousandths (10 x 10^-5) ntxiv rau 9 ib puas-thousandths (9 x 10^-5) uas yog 19 x 10^-5 los yog1.9x10^-4.
