GeoGebra pib qhia 2 leb tom qab decimal, Thaum koj pom muaj nuj nqis, funktioner eller andet i algebravinduet.

Koj muaj peev xwm pauv tau qhov no los ntawm ntxhoov heev lub zaub mov kev xaiv thiab ces rounding:

Qhia zaub mov kev xaiv yog muab faib ua 2.

0-15 decimals:

Qhov no txhais tau hais tias, hais tias piv txwv li yog hais tias koj xaiv “15 decimals“, ces yuav siv nws li rau 15 decimals nrog, yog hais tias muaj 15 decimal chaw nyob rau hauv tus naj npawb.
Yog hais tias muaj tsuas 8 decimal chaw nyob rau hauv tus naj npawb, yog li nws qhia tsuas 8 decimals. Txawm hais tias koj tau xaiv, nws mus rau cov 15.

3-15 tseem ceeb leb:

Qhov no txhais tau hais tias, hais tias piv txwv li yog hais tias koj xaiv “15 tseem ceeb leb“, ces qhia 15 decimals tsis hais seb, muaj pes tsawg decimal chaw yog nyob rau hauv tiam.

Piv txwv

Sim no:

1. Ntaus cov nram qab no nyob rau hauv lub tswv yim dab tsi (koj tig lub tswv yim mus rau lub teb submenu qhia):

   -0.002x ^ 2  0.3 x

2. Nco ntsoov tias lub algebra, qhov twg muaj tam sim no tsuas yog sawv f(x) = 3x.
3. Nws yog ib, vim GeoGebra tsuas qhia 2 decimal chaw los ntawm ua tsis tau. Li -0.002 tsuas -0.00, ua, GeoGebra tias tsis qhia, txij li thaum nws yog tib yam li 0.
4. Mus mus txog qhov chaw
5. Xaiv lub rounding
6. Xaiv “5 decimals”.
7. Mus saib nyob rau hauv algebra.
8. Tam sim no nws hais tias f(x)=-0.002x ² 0,3 x
9. Mus mus txog qhov chaw
10. Xaiv lub rounding
11. Xaiv “5 tseem ceeb leb”.
12. Mus saib nyob rau hauv algebra.
13. Tam sim no nws hais tias f(x)=-0.00200x ² 0,30000 x
14. Txawm koj xaiv, raws li sawv cev li qub, li cas los xij GeoGebra.

Ntxeev!
Brug derefter ‘Formindsk’ -knappen og ‘Forstør’ -khawm kom ZOOM tawm, samt ‘Flyt tegnefladen’-khawm rau koj tsiv lub.