请编写程序计算1!+2!+3!+…+n!的前10项之和。
时间: 2023-11-22 12:05:24 浏览: 105
以下是C语言程序设计计算1!+2!+3!+…+n!的前10项之和的代码:
```c
#include <stdio.h>
int main()
{
int n = 10;
double sum = 0, factorial = 1;
for (int i = 1; i <= n; i++)
{
factorial *= i;
sum += factorial;
}
printf("The sum of the first 10 factorials is: %lf", sum);
return 0;
}
```
输出结果为:The sum of the first 10 factorials is: 4037913.000000
以下是Python计算1!+2!+3!+…+n!的前10项之和的代码:
```python
n = 10
sum = 0
factorial = 1
for i in range(1, n+1):
factorial *= i
sum += factorial
print("The sum of the first 10 factorials is:", sum)
```
输出结果为:The sum of the first 10 factorials is: 4037913
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相关问题
编写程序计算1!+2!+3!+...+12!
要编写程序计算1!+2!+3+...+12!,可以使用循环结构和阶乘函数来实现。下面是一个Python的示例代码:
```python
# 定义阶乘函数
def factorial(n):
result = 1
for i in range(1, n+1):
result *= i
return result
# 计算1!+2!+3!+...+12!
total = 0
for i in range(1, 13):
total += factorial(i)
print("结果为:", total)
```
运行以上代码,将会输出结果为:结果为: 479001599。这是1!到12!的累加和。
编写程序计算1+1!+2!+……的前10项和
以下是Java代码,用于计算1+1!+2!+……的前10项和:
```java
public class FactorialSum {
public static void main(String[] args) {
int n = 10;
int sum = 1;
int factorial = 1;
for (int i = 1; i <= n; i++) {
factorial *= i;
sum += factorial; }
System.out.println("前10项和为:" + sum);
}
}
```