PathGraphQ[g] yields True if the graph g is a path and False otherwise.
PointFigureChart[{{date_1, p_1}, {date_2, p_2}, ...}] makes a point and figure chart with prices p_i at date date_i.PointFigureChart[{" name", daterange}] makes a point and ...
PoleZeroMarkers is an option for RootLocusPlot that specifies the markers to be drawn on the complex plane at the open-loop poles, closed-loop poles, and open-loop zeros.
ShortestPathFunction[type, data] represents a function that gives the shortest path from a source vertex s to target vertex t in a graph.
SpanFromLeft is a symbol that can appear at a particular position in a Grid or related construct to indicate that the corresponding position is occupied by a spanning element ...
StateSpaceRealization is an option to StateSpaceModel that specifies its canonical representation.
SystemDialogInput["type"] brings up an interactive system dialog and returns the value chosen in the dialog. SystemDialogInput["type", init] uses init as the initial setting ...
TextAlignment is an option for Cell, Style and related constructs which specifies how successive lines of text should be aligned.
TreeForm[expr] displays expr as a tree with different levels at different depths. TreeForm[expr, n] displays expr as a tree only down to level n.
UndirectedGraphQ[g] yields True if the graph g is an undirected graph and False otherwise.