h.proot

来自「强大的数学工具包」· PROOT 代码 · 共 31 行

                         * * * * * * *
                         *   proot   *
                         * * * * * * *

        "primitive root"
        SYNTAX: X = proot(m)
                X = proot()

        m is a positive integer or the current modulus.
        In the second case, m is the current modulus.

        X is assigned a primitive root of Z/mZ, if there exists one, 
        that is if
               m=1, m=2, m=4
        or     m=p^n, m=2*p^n    with p prime > 2, n positive integer.


        Example 1: (correct)

                proot(250)


        Example 2: (correct)

                proot(curModulus)


        Example 3: (correct)

                proot()