## represents the sequence of arguments supplied to a pure function. ## n represents the sequence of arguments supplied to a pure function, starting with the ...

i ;; j represents a span of elements i through j.i ;; represents a span from i to the end.;; j represents a span from the beginning to j.;; represents a span that includes ...

StabilityMarginsStyle is an option to frequency response plots such as BodePlot, NyquistPlot, and NicholsPlot that specifies the styles in which the gain and phase margins ...

StandardDeviationFilter[image, r] filters image by replacing every value by the standard deviations of the values in its range r neighborhood. StandardDeviationFilter[data, ...

StringQ[expr] gives True if expr is a string, and False otherwise.

x_y^z is the low-level box representation for x_y^z in notebook expressions.

x - y is equivalent to x + (-1*y).

SuspendPacket[] is a MathLink packet used for synchronization with the Mathematica kernel.

f /: lhs =. removes any rules defined for lhs, associated with the symbol f.

Unevaluated[expr] represents the unevaluated form of expr when it appears as the argument to a function.