# Difference between revisions of "Function 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|function}} | {{command|function}} | ||

− | ;Function[Function f, Number a, Number b]: Yields a function graph, that is equal to ''f'' on the interval [''a'', ''b''] and not | + | ;Function[Function f, Number a, Number b]: Yields a function graph, that is equal to ''f'' on the interval [''a'', ''b''] and not displayed outside of [''a'', ''b'']. |

− | :{{Note|1= | + | :{{Note|1='''This command is deprecated.''' To restrict the function’s domain, create a conditional function using the [[If Command|If command]], e.g. <br/><code>f(x) = If[-1 < x < 1, x²]</code>.}} |

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:{{Note|1=This command does not work with Tools / Macros. Use the [[If Command|If command]] as above.}} | :{{Note|1=This command does not work with Tools / Macros. Use the [[If Command|If command]] as above.}} | ||

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;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. | ;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|1= | {{example|1= | ||

<code>Function[{2, 4, 0, 1, 0, 1, 0}]</code> yields a triangular wave between ''x=2'' and ''x=4''. | <code>Function[{2, 4, 0, 1, 0, 1, 0}]</code> yields a triangular wave between ''x=2'' and ''x=4''. | ||

<code>Function[{-3, 3, 0, 1, 2, 3, 4, 5}]</code> yields a linear equation with slope ''=1'' between ''x=-3'' and ''x=3''. | <code>Function[{-3, 3, 0, 1, 2, 3, 4, 5}]</code> yields a linear equation with slope ''=1'' between ''x=-3'' and ''x=3''. | ||

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}} | }} |

## Revision as of 14:34, 16 December 2012

- Function[Function f, Number a, Number b]
- Yields a function graph, that is equal to
*f*on the interval [*a*,*b*] and not displayed outside of [*a*,*b*]. **Note:****This command is deprecated.**To restrict the function’s domain, create a conditional function using the If command, e.g.`f(x) = If[-1 < x < 1, x²]`

.**Note:**This command does not work with Tools / Macros. Use the If command as above.

- 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*.