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+--- Thread: math.gcd() is limited to 2 arguments (/thread-20417.html)
math.gcd() is limited to 2 arguments - Skaperen - Aug-09-2019
math.gcd() is limited to 2 arguments even though there are times the GCD is needed for 3 or more numbers. and LCM (Least Common Multiple) is related and probably needed at least as much if not more, but is not available in any module. they should add math.lcm() and make it and math.gcd() support any number of ints. i guess i need to write some code.
RE: math.gcd() is limited to 2 arguments - scidam - Aug-10-2019
lcm is closely related to lcd and using reduce from functools these functions could be generalized to process anynumber of values at a time, e.g.
from functools import reduce
from math import gcd
def multiple_gcd(*numbers):
return reduce(gcd, numbers)
def lcm(a, b):
return int(a * b / gcd(a, b))
def multiple_lcm(*numbers):
return reduce(lcm, numbers)
RE: math.gcd() is limited to 2 arguments - Skaperen - Aug-10-2019
yes, that is true, that's how i wrote a better gcd() that handles whatever is given to it.