AbsoluteThickness[d] is a graphics directive which specifies that lines which follow are to be drawn with absolute thickness d.
CanberraDistance[u, v] gives the Canberra distance between vectors u and v.
ChessboardDistance[u, v] gives the chessboard, Chebyshev, or sup norm distance between vectors u and v.
CosineDistance[u, v] gives the angular cosine distance between vectors u and v.
ListCurvePathPlot[{{x_1, y_1}, {x_2, y_2}, ...}] plots a curve that corresponds to a smooth path through the specified points.
MantissaExponent[x] gives a list containing the mantissa and exponent of a number x. MantissaExponent[x, b] gives the base-b mantissa and exponent of x.
MeanShiftFilter[image, r, d] replaces each pixel with the mean of the pixels in a range-r neighborhood and whose value is within a distance d.MeanShiftFilter[array, r, d] ...
Rule
(Built-in Mathematica Symbol) lhs -> rhs or lhs -> rhs represents a rule that transforms lhs to rhs.
Timing
(Built-in Mathematica Symbol) Timing[expr] evaluates expr, and returns a list of the time in seconds used, together with the result obtained.
$MinPrecision gives the minimum number of digits of precision to be allowed in arbitrary-precision numbers.