p .. or Repeated[p] is a pattern object that represents a sequence of one or more expressions, each matching p. Repeated[p, max] represents up to max expressions matching ...

Replace[expr, rules] applies a rule or list of rules in an attempt to transform the entire expression expr. Replace[expr, rules, levelspec] applies rules to parts of expr ...

RotationMatrix[\[Theta]] gives the 2D rotation matrix that rotates 2D vectors counterclockwise by \[Theta] radians.RotationMatrix[\[Theta], w] gives the 3D rotation matrix ...

ShortestPathFunction[type, data] represents a function that gives the shortest path from a source vertex s to target vertex t in a graph.

Short[expr] prints as a short form of expr, less than about one line long. Short[expr, n] prints as a form of expr about n lines long.

Show[graphics, options] shows graphics with the specified options added. Show[g_1, g_2, ...] shows several graphics combined.

SphericalBesselY[n, z] gives the spherical Bessel function of the second kind y_n (z).

StruveL[n, z] gives the modified Struve function L n (z).

Subfactorial[n] gives the number of permutations of n objects that leave no object fixed.

TransferFunctionExpand[tf] expands polynomial terms in the numerators and denominators of the TransferFunctionModel object tf.