. . . . "3.14159265" . "TeX"@en . . "TeX (/\u02C8t\u025Bx/ tekh (with the final consonant sounding like Ancient Greek's [k\u02B0] or English's /x/) but often pronounced /\u02C8t\u025Bk/ tek in English) is a typesetting system designed and mostly written by Donald Knuth and released in 1978."@en . . . "Maintained" .