FileType["file"] gives the type of a file, typically File, Directory, or None.
Forward
(Built-in Mathematica Symbol) Forward is a symbol that represents the forward direction for purposes of motion and animation.
FrameTicksStyle is an option for 2D graphics functions that specifies how frame ticks should be rendered.
GeometricMean[list] gives the geometric mean of the values in list.
Gray
(Built-in Mathematica Symbol) Gray represents the color gray in graphics or style specifications.
HankelH2[n, z] gives the Hankel function of the second kind H_n^(2)(z).
Hash
(Built-in Mathematica Symbol) Hash[expr] gives an integer hash code for the expression expr.Hash[expr, " type"] gives an integer hash code of the specified type for expr.
HermitianMatrixQ[m] tests whether m is a Hermitian matrix.
ImagePadding is an option for graphics functions that specifies what absolute extra padding should be left for extended objects such as thick lines and annotations such as ...
ImportAutoReplacements is an option for cells that specifies which replacement rules Mathematica automatically applies when importing text.