DateDifference[date_1, date_2] gives the number of days from date_1 to date_2.DateDifference[date_1, date_2, " unit"] gives the difference between date_1 and date_2 in the ...
DawsonF
(Built-in Mathematica Symbol) DawsonF[z] gives the Dawson integral F(z).
DedekindEta[\[Tau]] gives the Dedekind eta modular elliptic function \[Eta](\[Tau]).
Definition[symbol] prints as the definitions given for a symbol.
DegreeGraphDistribution[dlist] represents a degree graph distribution with vertex degree dlist.
Denominator[expr] gives the denominator of expr.
DepthFirstScan[g, s, {"event_1" -> f_1, "event_2" -> f_2, ...}] performs a depth-first scan of the graph g starting at the vertex s and evaluates f_i whenever "event_i" ...
Depth
(Built-in Mathematica Symbol) Depth[expr] gives the maximum number of indices needed to specify any part of expr, plus 1.
DerivativeFilter[image, {n_1, n_2}] computes the n_i\[Null]^th derivative of image in the vertical and horizontal directions.DerivativeFilter[image, {n_1, n_2}, \[Sigma]] ...
f' represents the derivative of a function f of one argument. Derivative[n_1, n_2, ...][f] is the general form, representing a function obtained from f by differentiating n_1 ...