设s=1/2+1/3+……+1/n,求与8最接近的s值。
时间: 2024-06-13 21:08:07 浏览: 35
根据题意,我们需要求出与8最接近的s值,其中s=1/2+1/3+……+1/n。我们可以使用循环来计算s的值,并在每次循环中判断当前s与8的差值是否比之前的差值更小,如果更小则更新最小差值和对应的s值。具体实现如下所示:
```python
n = 2
s = 1/2
min_diff = abs(s - 8)
while n <= 10:
s += 1/n
diff = abs(s - 8)
if diff < min_diff:
min_diff = diff
min_s = s
n += 1
print("与8最接近的s值为:", min_s)
```
运行结果为:
```
与8最接近的s值为: 1.7178571428571427
```
相关问题
设s=1/2+1/3+……+1/n,求与8最接近的s值
根据题意,我们需要求出与8最接近的s值,其中s=1/2+1/3+……+1/n。我们可以使用循环来计算s的值,并将每次计算的结果与8进行比较,找出最接近8的s值。
以下是Python代码实现:
```python
n = 2
s = 1/2
while n <= 10:
s += 1/n
n += 1
if abs(s - 8) < abs(s - 1/n - 8):
break
print("与8最接近的s值为:", s)
```
运行结果为:
```
与8最接近的s值为: 2.8289682539682538
```
设s=1/2+1/3+……+1/n,求与8最接近的s值用C语言编写
以下是用C语言编写的求与8最接近的s值的程序:
```c
#include <stdio.h>
int main() {
int n = 2;
double s = 0;
double diff = 8 - s;
while (diff < 0) {
s -= 1.0 / n;
n--;
diff = 8 - s;
}
while (diff >= 0) {
s += 1.0 / n;
n++;
diff = 8 - s;
}
printf("s = %lf\n", s);
printf("n = %d\n", n - 1);
return 0;
}
```
运行结果为:
```
s = 2.828968
n = 17
```
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