SyntaxLength["string"] finds the number of characters starting at the beginning of a string that correspond to syntactically correct input for a single Mathematica expression.

WindowElements is a notebook option that specifies the elements to include in the window used to display the notebook on the screen.

Counting roots of polynomials. CountRoots accepts polynomials with Gaussian rational coefficients. The root count includes multiplicities. This gives the number of real roots ...

The Structure of Mathematica Notebook Interfaces Using a Text-Based Interface

Mathematica notebooks consist of sequences of cells. The hierarchy of cells serves as a structure for organizing the information in a notebook, as well as specifying the ...

AnimationDisplayTime is an option for Cell that specifies the minimum time in seconds for which a cell should be displayed in the course of an animation that runs through a ...

ContinuousTimeModelQ[expr] gives True if expr is a continuous-time StateSpaceModel or TransferFunctionModel object, and False otherwise.

DiscreteTimeModelQ[expr] gives True if expr is a discrete-time StateSpaceModel or TransferFunctionModel object and False otherwise.

EndOfString represents the end of a string for purposes of matching in StringExpression.

Label[tag] represents a point in a compound expression to which control can be transferred using Goto.