GeoGebra initially shows 2 digits after the decimal, When you see values, executives or other in algebra.

You can change this by pressing the menu options and then rounding:

Menu option is divided into 2.

0-15 decimals:

This means, that for example if you choose “15 decimals“, then takes it up for 15 decimals with, if there is 15 decimal places in the number.
If there is only 8 decimal places in the number, so it displays only the 8 decimals. Even if you have chosen, it to display 15.

3-15 significant digits:

This means, that for example if you choose “15 significant digits“, then shows the 15 decimals REGARDLESS, how many decimal places are in century.

Example

Try this:

1. Type the following into the input field (you turn the input field to the submenu show):

   -0.002x ^ 2  0.3 x

2. Heal Maerk the algebra window, where there are now only f(x) = 3x.
3. It is, because geogebra only shows 2 DECIMAL default. Thus, -0.002 only -0.00, which Gør, that GeoGebra does not show it, when it is the same as 0.
4. Go up to the tuning
5. Vælg afrunding
6. Choose “5 decimals”.
7. See in algebra window.
8. Now is where f(x)=-0.002x ² 0.3 x
9. Go up to the tuning
10. Vælg afrunding
11. Choose “5 significant digits”.
12. See in algebra window.
13. Now is where f(x)=-0.00200² x 0.30000 x
14. Regardless of what you Vælg, then draw GeoGebra yet the same.

Tip!
Brug derefter ‘Formindsk’ -knappen og ‘Forstør’ -button to zoom ud, samt ‘Flyt tegnefladen’-button to move the.