ToLowerCase
ToLowerCase[string]
yields a string in which all letters have been converted to lowercase.
Details
- ToLowerCase handles both ordinary and special characters.
- The variant uppercase character \[CurlyCapitalUpsilon] is converted to its non‐variant lowercase form.
Examples
open all close allBasic Examples (1)
Scope (5)
Everything other than uppercase letters is left unchanged:
ToLowerCase["ABC xyz 123"]ToLowerCase threads itself element-wise over lists:
ToLowerCase[{"A", "B", "C"}]ToLowerCase["ÄÉ"]ToLowerCase["ΑΒΓΔΕΖΗΘ"]ToLowerCase["𝒜ℬ𝒞𝒟"]Possible Issues (2)
For the character ϒ, ToUpperCase is not the inverse of ToLowerCase:
ToUpperCase[ToLowerCase["ϒ"]]FullForm[%]For a few characters, ToLowerCase is not the inverse of ToUpperCase:
Select[Characters[FromCharacterCode[Range[2 ^ 16 - 1]]], UpperCaseQ[#] && ToUpperCase[ToLowerCase[#]] =!= #&]ToUpperCase[ToLowerCase[%]]Text
Wolfram Research (1991), ToLowerCase, Wolfram Language function, https://reference.wolfram.com/language/ref/ToLowerCase.html (updated 1996).
CMS
Wolfram Language. 1991. "ToLowerCase." Wolfram Language & System Documentation Center. Wolfram Research. Last Modified 1996. https://reference.wolfram.com/language/ref/ToLowerCase.html.
APA
Wolfram Language. (1991). ToLowerCase. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/ToLowerCase.html