The MacTeX 2013 Distribution

TeX (= tau epsilon chi, and pronounced similar to "blecch", not to the state known for Tex-Mex chili) is a computer language designed for use in typesetting; in particular, for typesetting math and other technical (from greek "techne" = art/craft, the stem of technology ) material.

TeX（读作tau epsilon chi，发音类似于'blecch'，而非得克萨斯州以特克斯-梅克斯辣椒闻名的州名）是一种专为排版设计而开发的计算机语言；特别是，用于排版数学及其他技术性材料（源自希腊语'techne'，意为艺术/工艺，亦为技术一词的词根）。