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离散数学函数对整数(...、-2、-1、0、1、2、...)执行运算,或以整数返回离散输出。您可以使用这些函数来分解大数、计算阶乘、计算排列组合或求解最大公分母。
factor
factorial
gcd
isprime
lcm
nchoosek
perms
matchpairs
primes
rat
rats
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