题目是谭浩强书上的习题
#include<stdio.h>
int main(){
double m=2.0;
double n=1.0;
double sum=0.0;
double temp=1.0;
int i;
for(i=1;i<=20;i++){
sum = sum+m/n;
temp = m;
m +=n;
n = temp;
}
printf("%16.10f",sum);
return 0;
}
double m=2.0;
double n=1.0;
double sum=0.0;
double temp=1.0;
int i;
for(i=1;i<=20;i++){
sum = sum+m/n;
temp = m;
m +=n;
n = temp;
}
printf("%16.10f",sum);
return 0;
}