Difference between revisions of "SigmaXX Command"
From GeoGebra Manual
Line 7: | Line 7: | ||
{{betamanual|version=4.2| | {{betamanual|version=4.2| | ||
1=; SigmaXX[ <List of Numbers>, <List of Frequencies> ] | 1=; SigmaXX[ <List of Numbers>, <List of Frequencies> ] | ||
− | |||
}} | }} |
Revision as of 14:37, 8 October 2012
- SigmaXX[ <List of Numbers> ]
- Calculates the sum of squares of the given numbers.
- Example: In order to work out the variance of a list you may use
SigmaXX[list] / Length[list] - Mean[list]^2
.
- SigmaXX[ <List of Points> ]
- Calculates the sum of squares of the x-coordinates of the given points.
Following text is about a feature that is supported only in GeoGebra 4.2.
|