java程序问题:计算:y=3*1!/1+3^2*2!/2^2+3^3*3!/3^3+...+3^n*n!/n^n(n取1000+)我编的程序哪有问题啊?import java.math.*;public class 计算下式{public static void main(String args[]){BigDecimal sum=new BigDecimal("3.0");BigDecimal n
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![java程序问题:计算:y=3*1!/1+3^2*2!/2^2+3^3*3!/3^3+...+3^n*n!/n^n(n取1000+)我编的程序哪有问题啊?import java.math.*;public class 计算下式{public static void main(String args[]){BigDecimal sum=new BigDecimal(](/uploads/image/z/1581460-52-0.jpg?t=java%E7%A8%8B%E5%BA%8F%E9%97%AE%E9%A2%98%EF%BC%9A%E8%AE%A1%E7%AE%97%3Ay%3D3%2A1%21%2F1%2B3%5E2%2A2%21%2F2%5E2%2B3%5E3%2A3%21%2F3%5E3%2B...%2B3%5En%2An%21%2Fn%5En%EF%BC%88n%E5%8F%961000%2B%EF%BC%89%E6%88%91%E7%BC%96%E7%9A%84%E7%A8%8B%E5%BA%8F%E5%93%AA%E6%9C%89%E9%97%AE%E9%A2%98%E5%95%8A%3Fimport+java.math.%2A%3Bpublic+class+%E8%AE%A1%E7%AE%97%E4%B8%8B%E5%BC%8F%7Bpublic+static+void+main%28String+args%5B%5D%29%7BBigDecimal+sum%3Dnew+BigDecimal%28%223.0%22%29%3BBigDecimal+n)
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