# Différences entre versions de « Tutoriel:Champ de Saisie »

De GeoGebra Manual

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[[en:Tutorial:Basic_Algebraic_Input,_Commands_and_Functions]] | [[en:Tutorial:Basic_Algebraic_Input,_Commands_and_Functions]] | ||

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+ | ==Tips and Tricks== | ||

+ | * '''Name a new object''' by typing ''name ='' into the input bar in front of its algebraic representation. {{Example|1= P = (3, 2) creates point P.}} | ||

+ | * '''Multiplication''' needs to be entered using an asterisk or space between the factors. {{Example|a*x or a x}} | ||

+ | * '''GeoGebra is case sensitive!''' Thus, upper and lower case letters must not be mixed up. | ||

+ | **Points are always named with upper case letters {{Example|1= A = (1, 2)}} | ||

+ | ** Vectors are named with lower case letters {{Example|1= v = (1, 3)}} | ||

+ | **Segments, lines, circles, functions… are always named with lower case letters. {{Example|1= circle c: (x – 2)^2 + (y – 1)^2 = 16}} | ||

+ | ** The variable x within a function and the variables x and y in the equation of a conic section always need to be lower case. {{Example|1= f(x) = 3*x + 2}} | ||

+ | * If you want to use an '''object within an algebraic expression''' or command you need to create the object prior to using its name in the input bar. | ||

+ | ** y = m x + b creates a line whose parameters are already existing values m and b (e.g. numbers / sliders). | ||

+ | ** Line[A, B] creates a line through existing points A and B. | ||

+ | * '''Confirm an expression''' you entered into the input bar by pressing the {{KeyCode|Enter}} key. | ||

+ | * '''Open the help window''' for using the input bar and commands by selecting ''Help'' from the [[Help Menu]] (or shortcut {{KeyCode|F1}}). | ||

+ | * '''Error messages''': Always read the messages – they could possibly help to fix the problem! | ||

+ | * '''Commands''' can be typed in or selected from the list next to the [[Input Bar]]. {{hint|If you don’t know which parameters are required within the brackets of a certain command, type in the full command name and press key {{KeyCode|F1}} to open the GeoGebra Wiki.}} | ||

+ | * '''Automatic completion of commands''': After typing in the first two letters of a command into the [[Input Bar]], GeoGebra tries to complete the command. | ||

+ | ** If GeoGebra suggests the desired command, hit the {{KeyCode|Enter}} key in order to place the cursor within the brackets. | ||

+ | ** If the suggested command is not the one you wanted to enter, just keep typing until the suggestion matches. |

## Version du 3 mars 2012 à 13:54

en:Tutorial:Basic_Algebraic_Input,_Commands_and_Functions

## Tips and Tricks

**Name a new object**by typing*name =*into the input bar in front of its algebraic representation.**Exemple:**P = (3, 2) creates point P.**Multiplication**needs to be entered using an asterisk or space between the factors.**Exemple:**a*x or a x**GeoGebra is case sensitive!**Thus, upper and lower case letters must not be mixed up.- Points are always named with upper case letters
**Exemple:**A = (1, 2) - Vectors are named with lower case letters
**Exemple:**v = (1, 3) - Segments, lines, circles, functions… are always named with lower case letters.
**Exemple:**circle c: (x – 2)^2 + (y – 1)^2 = 16 - The variable x within a function and the variables x and y in the equation of a conic section always need to be lower case.
**Exemple:**f(x) = 3*x + 2

- Points are always named with upper case letters
- If you want to use an
**object within an algebraic expression**or command you need to create the object prior to using its name in the input bar.- y = m x + b creates a line whose parameters are already existing values m and b (e.g. numbers / sliders).
- Line[A, B] creates a line through existing points A and B.

**Confirm an expression**you entered into the input bar by pressing the Enter key.**Open the help window**for using the input bar and commands by selecting*Help*from the Help Menu (or shortcut F1).**Error messages**: Always read the messages – they could possibly help to fix the problem!**Commands**can be typed in or selected from the list next to the Input Bar.**Hint:**If you don’t know which parameters are required within the brackets of a certain command, type in the full command name and press key F1 to open the GeoGebra Wiki.

**Automatic completion of commands**: After typing in the first two letters of a command into the Input Bar, GeoGebra tries to complete the command.- If GeoGebra suggests the desired command, hit the Enter key in order to place the cursor within the brackets.
- If the suggested command is not the one you wanted to enter, just keep typing until the suggestion matches.