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package eµÄx´Î·½;
public class power{
public static int factorial(int n){
int factorial=1;
int counter=1;
while (counter<1+n){
factorial*=counter+1;
counter++;
}
return factorial;
public static double ex(int n,int x){
double ex=1.0;
while (counter<=n){
ex+=(double)Math.pow(x,counter)/factorial(counter);
return ex;
