用python编程,求1!+2!+3!+4!+...+10!的和。
时间: 2023-11-24 18:52:08 浏览: 154
以下是使用Python编程求1!+2!+3!+4!+...+10!的和的方法:
```python
def factorial(n):
if n == 0:
return 1
else:
return n * factorial(n-1)
sum = 0
for i in range(1, 11):
sum += factorial(i)
print(sum)
```
输出结果为:4037913
相关问题
编程求1!+2!+3!+…....+10!+9!+8!+...…1!的和
好的,您的问题是编写一个程序来计算1! + 2! + 3! + ... + 10! + 9! + 8! + ... + 1!的总和。以下是一个可能的Python代码实现:
```
def factorial(n):
if n == 0:
return 1
else:
return n * factorial(n-1)
total = 0
for i in range(1, 11):
total += factorial(i)
for i in range(9, 0, -1):
total += factorial(i)
print(total)
```
程序通过定义一个递归函数来计算阶乘。对于每个数字从1到10,我们计算它的阶乘并将结果添加到总和中。然后我们按相反的顺序从9到1重复这个过程。最后,我们输出总和。
编程求1!+2!+3!+4!+...+n!的值 输入格式: 输入一个大于0的整数n 输出格式: 输出1!+2!+3!+4!+...+n!的值
为了计算从1到n的所有阶乘之和,你可以编写一个程序,使用循环和递归分别计算每个阶乘并累加它们。下面是一个简单的Python示例:
```python
def factorial(n):
# 递归实现阶乘
if n == 0 or n == 1:
return 1
else:
return n * factorial(n - 1)
def sum_of_factorials(n):
total = 0
for i in range(1, n + 1):
total += factorial(i)
return total
n = int(input("请输入一个大于0的整数: "))
result = sum_of_factorials(n)
print(f"1! + 2! + 3! + ... + {n}! 的值是: {result}")
```
在这个程序中,`factorial()`函数用于计算阶乘,而`sum_of_factorials()`函数则负责将所有阶乘相加。用户输入一个整数n,程序会计算对应的阶乘和。
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