.求下面数列的值,x用户输入,x-x/2!+x/3!-x/4!...+(-1)^(n+1)x/n!+...,要求:末项绝对值要大于10^(-4) 请输入x=1结果表达式的和为:0.6321428571428571
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def fact(n): res = 1 for i in range(1,n+1): res *= i return res def Sum(x): res = 0.0 n = 1 while abs(x*(-1)**(n+1)/fact(n))>10**(-4): res += x*(-1)**(n+1)/fact(n) n += 1 return res Sum(1) 输出: 0.6321428571428571
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