ConfidenceLevel is an option for LinearModelFit and other fitting functions that specifies the confidence level to use in generating parameter and prediction intervals.

If[condition, t, f] gives t if condition evaluates to True, and f if it evaluates to False. If[condition, t, f, u] gives u if condition evaluates to neither True nor False.

LetterQ[string] yields True if all the characters in the string are letters, and yields False otherwise.

TranslationTransform[v] gives a TransformationFunction that represents translation of points by a vector v.

VertexCoordinates is an option to Graph and related functions that specifies the coordinates to use to place the center of vertices.

When you enter a piece of input such as 2+2, Mathematica first recognizes the + as an operator and constructs the expression Plus[2,2], then uses the built-in rules for Plus ...

DataSources[] returns a list of information about named data sources made available through DatabaseResourcesPath.DataSources[name] returns a list of information about the ...

SQLBinary[data] represents raw binary data that can be stored in a database.

LoadCOMTypeLibrary[library] creates a so-called "interop" assembly from the named type library and loads that assembly.

TetGenGetFaceMarkers[expr] returns the face markers for a TetGen expression.