\[ICup] (Mathematica Character Name)

Unicode: 012D. Alias: Esc iu Esc. Letter. Included in ISO Latin-2. Used in transliterations of Cyrillic characters.

\[MeasuredAngle] (Mathematica Character Name)

Unicode: 2221. Letter-like form. Used in geometry to indicate an angle, as in the symbol ∡ ABC.

\[RawEscape] (Mathematica Character Name)

Unicode: 001B. Raw element. Equivalent to the non-printable ASCII character with code 27. Used in entering aliases for special characters in Mathematica.

\[RightAngle] (Mathematica Character Name)

Unicode: 221F. Letter-like form. Used in geometry to indicate a right angle, as in the symbol ∟ ABC.

\[SphericalAngle] (Mathematica Character Name)

Unicode: 2222. Letter-like form. Used in geometry to indicate a spherical angle, as in the symbol ∢ ABC.

\[Thorn] (Mathematica Character Name)

Unicode: 00FE. Alias: Esc thn Esc. Letter. Included in ISO Latin-1. Used in Icelandic and Old English.

\[UDoubleAcute] (Mathematica Character Name)

Unicode: 0171. Alias: Esc u'' Esc. Letter. Included in ISO Latin-2. Used in Hungarian.

\[UpTee] (Mathematica Character Name)

Unicode: 22A5. Alias: Esc uT Esc. Infix relational operator. x ⊥ y is by default interpreted as UpTee[x,y]. Used in geometry to indicate perpendicular. Used in number theory ...

\[WarningSign] (Mathematica Character Name)

Unicode: F725. Letter-like form. Used in yellow to indicate messages and other warnings in the default style for Mathematica notebooks. Based on an international standard ...

Evaluation > Evaluate Initialization ... (Mathematica Menu Item)

Evaluate Initialization Cells evaluates all initialization cells in the notebook.