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## Reading files

Facilities for computing Groebner bases are provided not by built-in functions but by a set of user functions written in Asir. The set of functions is provided as a file (sometimes called package), named ``gr'`. The facilities will be ready to use after you load the package by `load()`. The package ``gr'` is placed in the standard library directory of Asir. Therefore, it is loaded simply by specifying its file name, unless the environment variable `ASIR_LIBDIR` is set to a non-standard one.

    [0] load("gr")$

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