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All of these unicode symbols are valid Julia identifiers.\n+\n+.. doctest::\n+\n+    # x² instead of xx, x_squared, etc.\n+    for x = 1:r; x² = 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Document noteworthy unusual Julia features.","user":{"login":"Ismael-VC","id":4594825,"avatar_url":"https://avatars.githubusercontent.com/u/4594825?v=3","gravatar_id":"","url":"https://api.github.com/users/Ismael-VC","html_url":"https://github.com/Ismael-VC","followers_url":"https://api.github.com/users/Ismael-VC/followers","following_url":"https://api.github.com/users/Ismael-VC/following{/other_user}","gists_url":"https://api.github.com/users/Ismael-VC/gists{/gist_id}","starred_url":"https://api.github.com/users/Ismael-VC/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/Ismael-VC/subscriptions","organizations_url":"https://api.github.com/users/Ismael-VC/orgs","repos_url":"https://api.github.com/users/Ismael-VC/repos","events_url":"https://api.github.com/users/Ismael-VC/events{/privacy}","received_events_url":"https://api.github.com/users/Ismael-VC/received_events","type":"User","site_admin":false},"body":"Ref: https://github.com/JuliaLang/julia/issues/11966\r\n\r\nDocument unicode identifiers.\r\n\r\n[av 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