HeavisideTheta[x] represents the Heaviside theta function \[Theta](x), equal to 0 for x < 0 and 1 for x > 0. HeavisideTheta[x_1, x_2, ...] represents the multidimensional ...

Boole[expr] yields 1 if expr is True and 0 if it is False.

Monitor[expr, mon] generates a temporary monitor cell in which the continually updated current value of mon is displayed during the course of evaluation of expr.

Some common operations on special functions. Most special functions have simpler forms when given certain specific arguments. Mathematica will automatically simplify special ...

N[expr] gives the numerical value of expr. N[expr, n] attempts to give a result with n-digit precision.

WorkingPrecision is an option for various numerical operations that specifies how many digits of precision should be maintained in internal computations.

Here are a few examples that demonstrate building user interfaces with the GUIKit framework. Hello World—The classic simple application written with GUIKit. Simple Slider

Residue[expr, {z, z_0}] finds the residue of expr at the point z = z_0.

Mathematica 8 adds major new areas, including probability and statistics, graphs and networks, computational finance, control systems, wavelet analysis, and group theory. ...

NExpectation[expr, x \[Distributed] dist] gives the numerical expectation of expr under the assumption that x follows the probability distribution dist.NExpectation[expr, ...