Differences[list] gives the successive differences of elements in list. Differences[list, n] gives the n\[Null]^th differences of list. Differences[list, {n_1, n_2, ...}] ...
Distribute[f[x_1, x_2, ...]] distributes f over Plus appearing in any of the x_i. Distribute[expr, g] distributes over g. Distribute[expr, g, f] performs the distribution ...
ExpIntegralEi[z] gives the exponential integral function Ei(z).
FoldList[f, x, {a, b, ...}] gives {x, f[x, a], f[f[x, a], b], ...}.
FresnelS[z] gives the Fresnel integral S(z).
GraphLayout is an option to Graph and related functions that specifies what layout to use for graph components and collections of components.
HornerForm[poly] puts the polynomial poly in Horner form.HornerForm[poly, vars] puts poly in Horner form with respect to the variable or variable list ...
Map
(Built-in Mathematica Symbol) Map[f, expr] or f /@ expr applies f to each element on the first level in expr. Map[f, expr, levelspec] applies f to parts of expr specified by levelspec.
Normal
(Built-in Mathematica Symbol) Normal[expr] converts expr to a normal expression, from a variety of special forms.
OpenerView[{expr_1, expr_2}] represents an object which displays as an opener, together with expr_1 if the opener is closed, and both expr_1 and expr_2 if it is ...