# Difference between revisions of "Sum Command"

From GeoGebra Manual

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− | <noinclude>{{Manual Page}}[[Category:Manual (official)|{{PAGENAME}}]]</noinclude> | + | <noinclude>{{Manual Page|version=4.0}}[[Category:Manual (official)|{{PAGENAME}}]]</noinclude> |

{{command|statistics}} | {{command|statistics}} | ||

; Sum[List]: Calculates the sum of all list elements. | ; Sum[List]: Calculates the sum of all list elements. | ||

− | : Note | + | : {{Note| This command works for numbers, points, vectors, text, and functions.}} |

− | + | : {{Example|1= | |

− | :* <tt>Sum[{1, 2, 3}]</tt> gives you | + | :* <tt>Sum[{1, 2, 3}]</tt> gives you the number ''a = 6''. |

:* <tt>Sum[{x^2, x^3}]</tt> gives you ''f(x) = x<sup>2</sup> + x<sup>3</sup>''. | :* <tt>Sum[{x^2, x^3}]</tt> gives you ''f(x) = x<sup>2</sup> + x<sup>3</sup>''. | ||

− | :* <tt>Sum[Sequence[i,i,1,100]]</tt> gives you | + | :* <tt>Sum[Sequence[i,i,1,100]]</tt> gives you the number ''a = 5050''. |

− | :* <tt>Sum[{(1, 2), (2, 3)}]</tt> gives you | + | :* <tt>Sum[{(1, 2), (2, 3)}]</tt> gives you the point ''A = (3, 5)''. |

− | :* <tt>Sum[{(1, 2), 3}]</tt> gives you point ''B = (4, 2)''. | + | :* <tt>Sum[{(1, 2), 3}]</tt> gives you the point ''B = (4, 2)''. |

− | :* <tt>Sum[{"a","b","c"}]</tt> gives you the text ''"abc"''. | + | :* <tt>Sum[{"a","b","c"}]</tt> gives you the text ''"abc"''.}} |

+ | |||

; Sum[List, Number n of Elements]: Calculates the sum of the first ''n'' list elements. | ; Sum[List, Number n of Elements]: Calculates the sum of the first ''n'' list elements. | ||

− | : Note | + | : {{Note| This command works for numbers, points, vectors, text, and functions.}} |

− | : Example | + | : {{Example| 1=<tt>Sum[{1, 2, 3, 4, 5, 6}, 4]</tt> gives you the number ''a = 10''.}} |

## Revision as of 12:38, 14 February 2011

- Sum[List]
- Calculates the sum of all list elements.
**Note:**This command works for numbers, points, vectors, text, and functions.**Example:**`Sum[{1, 2, 3}]`gives you the number*a = 6*.`Sum[{x^2, x^3}]`gives you*f(x) = x*.^{2}+ x^{3}`Sum[Sequence[i,i,1,100]]`gives you the number*a = 5050*.`Sum[{(1, 2), (2, 3)}]`gives you the point*A = (3, 5)*.`Sum[{(1, 2), 3}]`gives you the point*B = (4, 2)*.`Sum[{"a","b","c"}]`gives you the text*"abc"*.

- Sum[List, Number n of Elements]
- Calculates the sum of the first
*n*list elements. **Note:**This command works for numbers, points, vectors, text, and functions.**Example:**`Sum[{1, 2, 3, 4, 5, 6}, 4]`gives you the number*a = 10*.