DeleteCases[expr, pattern] removes all elements of expr that match pattern. DeleteCases[expr, pattern, levelspec] removes all parts of expr on levels specified by levelspec ...
DeleteDuplicates[list] deletes all duplicates from list.DeleteDuplicates[list, test] applies test to pairs of elements to determine whether they should be considered ...
Delete
(Built-in Mathematica Symbol) Delete[expr, n] deletes the element at position n in expr. If n is negative, the position is counted from the end. Delete[expr, {i, j, ...}] deletes the part at position {i, ...
EdgeForm[g] is a graphics directive which specifies that edges of polygons and other filled graphics objects are to be drawn using the graphics directive or list of ...
EdgeRenderingFunction is an option for GraphPlot and related functions that gives a function to generate the graphics primitives to use in rendering each edge.
ExpandNumerator[expr] expands out products and powers that appear in the numerator of expr.
GraphicsGroup[{g_1, g_2, ...}] represents a collection of graphics objects grouped together for purposes of interactive selection in a notebook.
Gudermannian[z] gives the Gudermannian function gd(z).
Haversine[z] gives the haversine function hav(z).
HoldAllComplete is an attribute which specifies that all arguments to a function are not to be modified or looked at in any way in the process of evaluation.