Tail
Vector
The tail of a vector AB^-> is the initial point A, i.e., the point at which the vector originates.
The tails of a statistical distribution with probability density function P(x) are the extreme values of x for which P(x) is less than some given threshold.
See also
Direction, Head, Skewness, Statistical Distribution, VectorExplore with Wolfram|Alpha
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Cite this as:
Weisstein, Eric W. "Tail." From MathWorld--A Wolfram Resource. https://mathworld.wolfram.com/Tail.html