DiskMatrix[r] gives a matrix whose elements are 1 in a disk-shaped region of radius r, and are otherwise 0.DiskMatrix[r, w] gives a w*w matrix containing a disk of 1s with ...
DistributionParameterQ[dist] yields True if dist is a valid distribution, and yields False otherwise.
EndPackage[] restores $Context and $ContextPath to their values before the preceding BeginPackage, and prepends the current context to the list $ContextPath.
ExponentFunction is an option for NumberForm and related functions that determines the exponent to use in printing approximate real numbers.
FaceForm[g] is a graphics directive which specifies that faces of polygons and other filled graphics objects are to be drawn using the graphics directive or list of ...
GraphHighlightStyle is an option to Graph and related objects that specifies styles to use for highlighted graph elements.
Haversine[z] gives the haversine function hav(z).
HurwitzLerchPhi[z, s, a] gives the Hurwitz\[Dash]Lerch transcendent \[CapitalPhi](z, s, a).
ImageEffect[image, " effect"] applies the specified image effect to image.ImageEffect[image, {"effect", params}] uses parameters params.
InverseJacobiNC[v, m] gives the inverse Jacobi elliptic function nc -1 (v \[VerticalSeparator] m).