Difference between revisions of "SigmaXX Command"
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Revision as of 15:23, 27 February 2011
- 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.
