Différences entre versions de « Appellation des objets »
De GeoGebra Manual
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<noinclude>{{Manual Page|version=4.0}}</noinclude>{{objects}} | <noinclude>{{Manual Page|version=4.0}}</noinclude>{{objects}} | ||
:{{translate|Naming Objects}} | :{{translate|Naming Objects}} | ||
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+ | {{objects}} | ||
+ | You can assign a certain name to an object when you create it using the [[Input Bar]]: | ||
+ | |||
+ | * [[Points and Vectors|Points]]: In GeoGebra, points are always named using upper case letters. Just type in the name (e. g., A, P) and an equal sign in front of the coordinates or commands. | ||
+ | {{example|1=<code>C = (2, 4)</code>, <code> P = (1; 180°)</code>, <code>Complex = 2 + i</code>}} | ||
+ | * [[Points and Vectors|Vectors]]: In order to distinguish between points and vectors, vectors need to have a lower case name in GeoGebra. Again, type in the name (e. g., v, u) and an equal sign in front of the coordinates or commands. | ||
+ | {{example|1=<code>v = (1, 3)</code>, <code> u = (3; 90°)</code>, <code>complex = 1 – 2i</code>}} | ||
+ | * [[Lines and Axes|Lines]], circles, and [[conic sections]]: These objects can be named by typing in the name and a colon in front of their equations or commands. | ||
+ | {{example|1=<code>g: y = x + 3</code>, <code>c: (x-1)^2 + (y – 2)^2 = 4</code>, <code>hyp: x^2 – y^2 = 2</code>}} | ||
+ | * [[Functions]]: You can name functions by typing, for example, <code>f(x) =</code> or <code>g(x)=</code> in front of the function’s equation or commands. | ||
+ | {{example|1=<code>h(x) = 2 x + 4</code>, <code>q(x) = x^2, trig(x) = sin(x)</code>}} | ||
+ | {{note|1= | ||
+ | * If you don’t manually assign a name to an object, GeoGebra assigns the names of new objects in alphabetical order. | ||
+ | * You can create indices within the names of objects by using an underscore. For example A<sub>1</sub> is entered as <code>A_1</code> and s<sub>AB</sub> is entered as <code>s_{AB}</code>. }} | ||
+ | ==Reserved labels== | ||
+ | There are a few labels you can't use for objects: x, y, z, xAxis, yAxis, zAxis. | ||
+ | |||
+ | Once you create object dependent on imaginary unit ''i'' or Euler number ''e'', [[Free, Dependent and Auxiliary Objects|auxiliary]] object called ''i'' (resp. ''e'') is created. From that moment you cannot use this label for other objects. On the other hand, if you define for instance ''e=3'', you will have to use special '''e''' character from the symbol list to get Euler number. | ||
+ | |||
+ | See also [[Labels and Captions]]. |
Version du 20 juin 2011 à 09:35
- Some content was not yet translated. See the English original. Please edit the manual page if you have the rights for translation.
You can assign a certain name to an object when you create it using the Input Bar:
- Points: In GeoGebra, points are always named using upper case letters. Just type in the name (e. g., A, P) and an equal sign in front of the coordinates or commands.
Exemple:
C = (2, 4)
, P = (1; 180°)
, Complex = 2 + i
- Vectors: In order to distinguish between points and vectors, vectors need to have a lower case name in GeoGebra. Again, type in the name (e. g., v, u) and an equal sign in front of the coordinates or commands.
Exemple:
v = (1, 3)
, u = (3; 90°)
, complex = 1 – 2i
- Lines, circles, and conic sections: These objects can be named by typing in the name and a colon in front of their equations or commands.
Exemple:
g: y = x + 3
, c: (x-1)^2 + (y – 2)^2 = 4
, hyp: x^2 – y^2 = 2
- Functions: You can name functions by typing, for example,
f(x) =
org(x)=
in front of the function’s equation or commands.
Exemple:
h(x) = 2 x + 4
, q(x) = x^2, trig(x) = sin(x)
Note :
- If you don’t manually assign a name to an object, GeoGebra assigns the names of new objects in alphabetical order.
- You can create indices within the names of objects by using an underscore. For example A1 is entered as
A_1
and sAB is entered ass_{AB}
.
Reserved labels
There are a few labels you can't use for objects: x, y, z, xAxis, yAxis, zAxis.
Once you create object dependent on imaginary unit i or Euler number e, auxiliary object called i (resp. e) is created. From that moment you cannot use this label for other objects. On the other hand, if you define for instance e=3, you will have to use special e character from the symbol list to get Euler number.
See also Labels and Captions.