分類:自由計算機代數系統

This is a category of articles relating to software which can be freely used, copied, studied, modified, and redistributed by everyone that obtains a copy: "自由軟件" or "開源軟件". Typically, this means software which is distributed with a 自由軟件協議, and whose 原始碼 is available to anyone who receives a copy of the software.