Thanks, gcd is more complicated than what I think. Stephen Loo於 2013年7月11日星期四UTC+8下午4時17分45秒寫道： > > Hi all, > > I found that there are many different kind of gcd in sympy different > module, such as > > sympy.core.numbers.igcd > sympy.polys.polytools.gcd > sympy.polys.polytools.gcdex > sympy.polys.polytools.gcd_list > sympy.polys.polytools.half_gcdex > > And the new one > sympy.solvers.diophantine.extended_euclid > > They calculate integer gcd or polynomial gcd. I suggest to make single > public function call, like gamma, put in integer argument and return > integer, put in polynomial argument and return polynomial. And gcd function > should not limit to 2 integer only, for example, gcd(10, 15, 20) = 5 > > Any idea? Any suggestion? > > Thanks. > >
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