EnterTextPacket[string] is a MathLink packet that requests the parsing and evaluation of string as an expression.

SortBy[list, f] sorts the elements of list in the order defined by applying f to each of them.

Formatting lists as tables and matrices. Here is a list. Grid gives the list typeset in a tabular format.

ParametricPlot[{f_x, f_y}, {u, u_min, u_max}] generates a parametric plot of a curve with x and y coordinates f_x and f_y as a function of u. ParametricPlot[{{f_x, f_y}, ...

EulerGamma is Euler's constant \[Gamma], with numerical value \[TildeEqual] 0.577216.

SquareWave[x] gives a square wave that alternates between +1 and -1 with unit period.SquareWave[{y_1, y_2}, x] gives a square wave that alternates between y_1 and y_2 with ...

Item[expr, options] represents an item within constructs such as Grid, Overlay, and Manipulate that displays with expr as the content, and with the specified options applied ...

The hypergeometric functions play a unifying role in mathematical analysis since many important functions, such as the Bessel functions and Legendre functions, are special ...

PrimePowerQ[expr] yields True if expr is a power of a prime number, and yields False otherwise.

Functions for manipulating files. Different operating systems have different commands for manipulating files. Mathematica provides a simple set of file manipulation ...