`lower`

Converts text to lowercase.

Category: Language Fundamentals > Data Types

Syntax

s2 = lower(s)

Returns s with every uppercase letter changed to lowercase.

Description

Only letters change; digits, punctuation and characters without a case stay as they are. Accented letters are converted too, so lower('Ç') gives 'ç'. A cell array is processed element by element.

It is typically used to compare text without regard to case, as in strcmp(lower(a), lower(b)), though strcmpi does that directly.

Input arguments

s: Character array, string array, or cell array of character vectors.

Output arguments

s2: Text of the same class and size as s.

Example

Text of different classes

lower('Hello World 1')
lower("ABC")
lower({'AB', 'Cd'})

Output

ans = 'hello world 1'
ans = "abc"
ans = 1×2 cell

    {'ab'}    {'cd'}

lower