Positive (Built-in Mathematica Symbol)

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

FindIntegerNullVector (Built-in Mathematica Symbol)

FindIntegerNullVector[{x_1, x_2, ..., x_n}] finds a list of integers a_i such that a_1 x_1 + a_2 x_2 + \[CenterEllipsis] + a_n x_n == 0. FindIntegerNullVector[{x_1, x_2, ..., ...

$SessionID (Built-in Mathematica Symbol)

$SessionID is a number set up to be unique to a particular Mathematica session.

FindRoot (Built-in Mathematica Symbol)

FindRoot[f, {x, x_0}] searches for a numerical root of f, starting from the point x = x_0.FindRoot[lhs == rhs, {x, x_0}] searches for a numerical solution to the equation lhs ...

RootApproximant (Built-in Mathematica Symbol)

RootApproximant[x] converts the number x to one of the "simplest" algebraic numbers that approximates it well.RootApproximant[x, n] finds an algebraic number of degree at ...

Underflow (Built-in Mathematica Symbol)

Underflow[] represents a number too small to represent explicitly on your computer system.

LucasL (Built-in Mathematica Symbol)

LucasL[n] gives the Lucas number L_n.LucasL[n, x] gives the Lucas polynomial L_n (x).

Overflow (Built-in Mathematica Symbol)

Overflow[] represents a number too large to represent explicitly on your computer system.

Assumptions and Domains (Mathematica Guide)

Mathematica has a flexible system for specifying arbitrary symbolic assumptions about variables. It uses a wide range of sophisticated algorithms to infer the consequences of ...

NonNegative (Built-in Mathematica Symbol)

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