Difference between revisions of "First Command"
From GeoGebra Manual
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<noinclude>{{Manual Page|version=4.0}}[[Category:Manual (official)|{{PAGENAME}}]]</noinclude> | <noinclude>{{Manual Page|version=4.0}}[[Category:Manual (official)|{{PAGENAME}}]]</noinclude> | ||
{{command|list}} | {{command|list}} | ||
− | ; First[List]: Returns the first element of the list. | + | ; First[List L]: Returns a list containing the first element of the list ''L''. |
− | ; First[List, Number n of elements]: Returns a new list that contains just the first ''n'' elements of the list. | + | {{example|1=<code>First[{1,2,3}]</code> returns {1}.}} |
− | ; First[Text]: | + | To get the first element itself use e.g. [[Element Command]]. |
− | ; First[Text, Number n of elements]: {{ | + | ; First[List L, Number n of elements]: Returns a new list that contains just the first ''n'' elements of the list ''L''. |
+ | ; First[Text]:Returns first character of the text. | ||
+ | ; First[Text, Number n of elements]: Returns the first ''n'' characters of the text. | ||
+ | {{Example|1=<code>First["Hello",2]</code> returns "He".}} | ||
; First[Locus, Number n of elements]: {{Description}} | ; First[Locus, Number n of elements]: {{Description}} |
Revision as of 13:54, 23 March 2011
- First[List L]
- Returns a list containing the first element of the list L.
Example:
First[{1,2,3}]
returns {1}.To get the first element itself use e.g. Element Command.
- First[List L, Number n of elements]
- Returns a new list that contains just the first n elements of the list L.
- First[Text]
- Returns first character of the text.
- First[Text, Number n of elements]
- Returns the first n characters of the text.
Example:
First["Hello",2]
returns "He".- First[Locus, Number n of elements]
Description of command / feature needed. Please enter it instead of this template into Manual:First Command. so that it's included also to the public namespace. For more details see Project:HowTo