# Definitions for developers starting with letter V

**Variance**definition What is the mean (average) value. It is frequently used in statistics to measure how large the differences are in a set of numbers. It is**Vector**definition What is is “a mathematical expression denoting a combination of magnitude and direction,” which you may remember from geometry class, but their**Space Vector**definition What is A collection of vectors—for example, a matrix. See also vector, matrix, linear algebra

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Definition of Vector Space, Vector, Variance description.

What is Vector Space, Vector, Variance in web development.