EllipticThetaPrime[a, u, q] gives the derivative with respect to u of the theta function \[CurlyTheta]_a (u, q) (a = 1, ..., 4).

Mathematica has over a thousand options that allow full control over every aspect of its interface. These options can be set interactively from menus, defined in stylesheets, ...

Cycles is an optional argument for the function Involutions.

Recognize is now available as the newly added built-in Mathematica kernel function RootApproximant.

Grad[f] gives the gradient, \[Del]f, of the scalar function f in the default coordinate system. Grad[f, coordsys] gives the gradient of f in the coordinate system coordsys.

BoxMargins is an option for AdjustmentBox objects that specifies the margins to leave around the contents of the box.

ButtonData is an option for the low-level function ButtonBox that specifies the second argument to give to the ButtonFunction for the button when the button is active and is ...

ButtonMinHeight is an option for the low-level function ButtonBox that specifies the minimum total height in units of font size that should be allowed for the button.

CallPacket[integer, list] is a MathLink packet encapsulating a request to invoke the external function numbered integer with the arguments contained in list.

CellGroupingRules is an option for cells that specifies the rules used for grouping a cell.