萌新求答，C语言入门编程问题
# include <stdio.h>int main (void)
{
double i, n;
double sum = 0;
scanf("%lf", &n);
for(i = 1; i <= n; i+=2)
{
sum = sum + 1.0/i;
}
printf("sum = %lf\n", sum);
return 0;
}
用23验算时，答案 = 2.224353与标准答案 = 2.549541 不一致，为什么
int main (void)
{
double i, n;
double sum = 0;
scanf("%lf", &n);
for(i = 1; i <= n; i+=2)
{
sum = sum + 1.0/i;
}
printf("sum = %lf\n", sum);
return 0;
}
用23验算时，答案 = 2.224353与标准答案 = 2.549541 不一致，为什么
