Difference between revisions of "Function Command"

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(Make it clearer that Function[ <Function>, <Start x-Value>, <End x-Value> ] is deprecated)
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{{command|function}}
 
{{command|function}}
 
;Function[ <Function>, <Start x-Value>, <End x-Value> ]
 
;Function[ <Function>, <Start x-Value>, <End x-Value> ]
: Yields a function graph, that is equal to the given function on the interval [''Start x-Value'', ''End x-Value''] and not displayed outside of [''Start x-Value'', ''End x-Value''].
+
:{{Note|1=<pre style="color: red">This command is deprecated.</pre> To restrict a function’s domain, instead use the [[If Command|If command]]:
:{{example|1=<code><nowiki>Function[x^2, -1, 1]</nowiki></code> yields the function graph of ''x^2'' in the interval [''-1'', ''1''].}}
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::{{example|1=<code><nowiki>f(x) = If[-1 <= x <= 1, x^2]</nowiki></code>.}}}}
:{{Note|1=This command is deprecated. To restrict the function’s domain, create a conditional function using the [[If Command|If command]].
 
::{{example|1=<code><nowiki>f(x) = If[-1 < x < 1, ]</nowiki></code>.}}}}
 
 
;Function[ <List of Numbers> ]
 
;Function[ <List of Numbers> ]
 
: Yields the following function: The first two numbers determine the start ''x''-value and the end ''x''-value. The rest of the numbers are the ''y''-values of the function in between in equal distances.
 
: Yields the following function: The first two numbers determine the start ''x''-value and the end ''x''-value. The rest of the numbers are the ''y''-values of the function in between in equal distances.

Revision as of 13:09, 6 October 2013



Function[ <Function>, <Start x-Value>, <End x-Value> ]
Note:
This command is deprecated.
To restrict a function’s domain, instead use the If command:
Example: f(x) = If[-1 <= x <= 1, x^2].
Function[ <List of Numbers> ]
Yields the following function: The first two numbers determine the start x-value and the end x-value. The rest of the numbers are the y-values of the function in between in equal distances.
Example:
  • Function[{2, 4, 0, 1, 0, 1, 0}] yields a triangular wave between x = 2 and x = 4.
  • Function[{-3, 3, 0, 1, 2, 3, 4, 5}] yields a linear equation with slope = 1 between x = -3 and x = 3.
Note: This command does not work with Tools / Macros. Use the If command as above.


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