> For the complete documentation index, see [llms.txt](https://developer.smarts.ee/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developer.smarts.ee/general/data-object-description/langcode.md).

# LangCode

SMARTS is using **ISO 639-1:2002** language name code format. ISO 639-1 defines abbreviations for languages, consisting of two lowercase letters.

| Language   | ISO |
| ---------- | :-: |
| English    |  EN |
| Estonian   |  ET |
| Latvian    |  LV |
| Lithuanian |  LT |
| Finnish    |  FI |
| Russian    |  RU |

**Full list of language codes**: <http://www.mathguide.de/info/tools/languagecode.html>