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Macaulay2Doc > Copyright and license > MPFR


The MPFR library is used by Macaulay2 for its arbitrary precision real number arithmetic and associated transcendental functions. It is available at The library is remarkable for the care taken to return correctly rounded results. It is hoped that this will form a good base for experimentation with algebraic algorithms that mix symbolic and numeric techniques. It is licensed under the GNU Lesser General Public License, version 3 or later.