NonNegative (Built-in Mathematica Symbol)

NonNegative[x] gives True if x is a non-negative number.

NonPositive (Built-in Mathematica Symbol)

NonPositive[x] gives True if x is a non-positive number.

Positive (Built-in Mathematica Symbol)

Positive[x] gives True if x is a positive number.

Complex (Built-in Mathematica Symbol)

Complex is the head used for complex numbers.

OwnValues (Built-in Mathematica Symbol)

OwnValues[x] gives the rule corresponding to any ownvalue defined for the symbol x.

BitNot (Built-in Mathematica Symbol)

BitNot[n] gives the bitwise NOT of the integer n.

GraphData (Built-in Mathematica Symbol)

GraphData[name] gives a graph with the specified name.GraphData[name, " property"] gives the value for the specified property for a named graph.GraphData["class"] gives a ...

External Operations (Mathematica Guide)

Tightly integrated into Mathematica's core language is a rich set of primitives for interacting with external environments. Mathematica's symbolic architecture makes possible ...

Work with Variables and Functions (Mathematica How To)

Variables and functions are integral to Mathematica 's symbolic programming language. These "How tos" give step-by-step instructions for common tasks related to variables, ...

NIntegrate Integration Strategies (Mathematica Tutorial)

An integration strategy is an algorithm that attempts to compute integral estimates that satisfy user-specified precision or accuracy goals. An integration strategy normally ...