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python-3.xgmpy

How to get abs() of an mpz in GMPY2?

I need to get the absolute value of an mpz object in GMPY2 but I cannot find any function like abs(). How can this be done?

Solution

  • mpz objects provide __abs__, and so the ordinary abs works:

    >>> gmpy2.mpz(3)
mpz(3)
>>> abs(gmpy2.mpz(3))
mpz(3)
>>> gmpy2.mpz(-3)
mpz(-3)
>>> abs(gmpy2.mpz(-3))
mpz(3)