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Mathematica > Core Language > String Manipulation > Character Operations >

Built-in Mathematica Symbol

ToUpperCase

ToUpperCase[string]
yields a string in which all letters have been converted to uppercase.

Variant lowercase characters such as \[CurlyPhi] are converted to their non-variant uppercase forms.

Convert characters in a string to uppercase:

Everything other than lowercase letters is left unchanged:

ToUpperCase threads itself element-wise over lists:

Accented characters:

Greek letters:

Script letters:

The uppercase form of the German ß character is a pair of characters:

ToLowerCase does not give back the original character:

For a few characters, ToLowerCase is not the inverse of ToUpperCase:

Check that the German ß character is the only one to have a multicharacter uppercase form:

Find the names of characters for which ToLowerCase is not the inverse of ToUpperCase: