Algebraïsche invoer in het CAS-venster
The CAS View allows you to use GeoGebra's CAS (Computer Algebra System) for symbolic computations.
Vergelijkingen en het toekenningssymbool
Equations are entered using an equal sign =, while the input := indicates an assignment.
= | Enter the equation 3x + 5 = 7 using the simple Equal sign into the CAS Input and hit the Enter key. |
 | Note: If you want to show the corresponding line in the Graphics View, you need to click on the Show / Hide icon next to the equation. |
:= | Enter the function f(x) := 2 * x + 1 into the second row of the CAS View and hit the Enter key.
|
Hints:
|
Probeer het zelf
Gebruik van veranderlijken
In the CAS View, you can use variables that were not assigned any value.
Task: Solve an equation step by step.
| 1. |  | Type 5x - 2 = 8 and select the Keep Input tool. |
| 2. |
| In row 2, type the shortcut ) in order to copy the previous output into the CAS Input.
Note: The term is automatically placed inside a set of parantheses (5x - 2 = 8). |
| 3. |  | Type +2 outside of the parantheses and select the Evaluate tool.
|
| 4. |
| Copy the previous output (5x = 10) into the next row. |
| 5. |  | Type / 5 outside of the parantheses and select the Evaluate tool. |
| 6. | | In row 1, click on the Show / Hide icon in order to display the original equation in the Graphics View and check your solution. |
Vermenigvuldigingen
Multiplication of variables needs to be marked explicitly using an asterisk
*.
Example: The input b * (c + d) gives you the output bc + bd.
Note: If you enter bc without the asterisk, you will create a new variable called bc.