Cell > Merge Cells (Mathematica Menu Item)

Merge Cells combines selected cells into one cell.

File > Print Selection... (Mathematica Menu Item)

Print Selection prints a selection.

Insert > Special Character… (Mathematica Menu Item)

Special Character opens the Special Characters palette.

Window > Tile Windows Tall (Mathematica Menu Item)

Tile Windows Tall arranges all windows to fit in the screen one beside the other (Windows and Macintosh only).

Window > Tile Windows Wide (Mathematica Menu Item)

Tile Windows Wide arranges all windows to fit in the screen one above the other (Windows and Macintosh only).

BilateralFilter (Built-in Mathematica Symbol)

BilateralFilter[image, \[Sigma], \[Mu]] applies a bilateral filter of spatial spread \[Sigma] and pixel value spread \[Mu] to image.

ContinuedFractionK (Built-in Mathematica Symbol)

ContinuedFractionK[f, g, {i, i_min, i_max}] represents the continued fraction \[CapitalKappa]_i = i_min^i_max f/g.ContinuedFractionK[g, {i, i_min, i_max}] represents the ...

DatePattern (Built-in Mathematica Symbol)

DatePattern[{"e_1", "e_2", ...}] represents the characters of a date with elements of type "e_i" in StringExpression.DatePattern[{"e_1", "e_2 ", ...}, sep] allows separators ...

DefaultStyleDefinitions (Built-in Mathematica Symbol)

DefaultStyleDefinitions is a global option that specifies the default stylesheet for all new notebooks.

Diagonal (Built-in Mathematica Symbol)

Diagonal[m] gives the list of elements on the leading diagonal of the matrix m.Diagonal[m, k] gives the elements on the k\[Null]^th diagonal of m.