MeanShift[list, d] replaces each element in list by the mean of the values of all elements that differ by less than d.
ObservabilityMatrix[ss] gives the observability matrix of the StateSpaceModel object ss.
OneIdentity is an attribute that can be assigned to a symbol f to indicate that f[x], f[f[x]], etc. are all equivalent to x for the purpose of pattern matching.
RadicalBox[x, n] is a low-level box construct that represents the displayed object Power[x, (n)^-1] in notebook expressions.
RowBox
(Built-in Mathematica Symbol) RowBox[{box_1, box_2, ...}] is a low-level box construct that represents a row of boxes or strings in a notebook expression.
SoundNote[pitch] represents a music-like sound note with the specified pitch.SoundNote[pitch, t] takes the note to have duration t.SoundNote[pitch, {t_min, t_max}] takes the ...
StringLength["string"] gives the number of characters in a string.
Subscript[x, y] is an object that formats as x_y. Subscript[x, y_1, y_2, ...] formats as x Subscript[y, 1], Subscript[y, 2], ....
Thinning[image] finds the skeletons of foreground regions in image by applying morphological thinning until convergence.Thinning[image, n] performs n iterations of ...
TimeUsed[] gives the total number of seconds of CPU time used so far in the current Mathematica session.