Giai thừa python

Không nhiều người biết, nhưng python cung cấp một hàm trực tiếp có thể tính giai thừa của một số mà không cần viết toàn bộ mã để tính giai thừa

Phương pháp ngây thơ để tính giai thừa

Python3

math.factorial[x]
Parameters :
x : The number whose factorial has to be computed.
Return value :
Returns the factorial of desired number.
Exceptions : 
Raises Value error if number is negative or non-integral.

0

math.factorial[x]
Parameters :
x : The number whose factorial has to be computed.
Return value :
Returns the factorial of desired number.
Exceptions : 
Raises Value error if number is negative or non-integral.

1

math.factorial[x]
Parameters :
x : The number whose factorial has to be computed.
Return value :
Returns the factorial of desired number.
Exceptions : 
Raises Value error if number is negative or non-integral.

2

math.factorial[x]
Parameters :
x : The number whose factorial has to be computed.
Return value :
Returns the factorial of desired number.
Exceptions : 
Raises Value error if number is negative or non-integral.

3

math.factorial[x]
Parameters :
x : The number whose factorial has to be computed.
Return value :
Returns the factorial of desired number.
Exceptions : 
Raises Value error if number is negative or non-integral.

4

math.factorial[x]
Parameters :
x : The number whose factorial has to be computed.
Return value :
Returns the factorial of desired number.
Exceptions : 
Raises Value error if number is negative or non-integral.

0

math.factorial[x]
Parameters :
x : The number whose factorial has to be computed.
Return value :
Returns the factorial of desired number.
Exceptions : 
Raises Value error if number is negative or non-integral.

3

math.factorial[x]
Parameters :
x : The number whose factorial has to be computed.
Return value :
Returns the factorial of desired number.
Exceptions : 
Raises Value error if number is negative or non-integral.

2

 

math.factorial[x]
Parameters :
x : The number whose factorial has to be computed.
Return value :
Returns the factorial of desired number.
Exceptions : 
Raises Value error if number is negative or non-integral.

3

math.factorial[x]
Parameters :
x : The number whose factorial has to be computed.
Return value :
Returns the factorial of desired number.
Exceptions : 
Raises Value error if number is negative or non-integral.

4

math.factorial[x]
Parameters :
x : The number whose factorial has to be computed.
Return value :
Returns the factorial of desired number.
Exceptions : 
Raises Value error if number is negative or non-integral.

5

math.factorial[x]
Parameters :
x : The number whose factorial has to be computed.
Return value :
Returns the factorial of desired number.
Exceptions : 
Raises Value error if number is negative or non-integral.

6_______07

math.factorial[x]
Parameters :
x : The number whose factorial has to be computed.
Return value :
Returns the factorial of desired number.
Exceptions : 
Raises Value error if number is negative or non-integral.

2

math.factorial[x]
Parameters :
x : The number whose factorial has to be computed.
Return value :
Returns the factorial of desired number.
Exceptions : 
Raises Value error if number is negative or non-integral.

9

The factorial of 23 is : 25852016738884976640000

0

math.factorial[x]
Parameters :
x : The number whose factorial has to be computed.
Return value :
Returns the factorial of desired number.
Exceptions : 
Raises Value error if number is negative or non-integral.

2

The factorial of 23 is : 25852016738884976640000

2

The factorial of 23 is : 25852016738884976640000

3

math.factorial[x]
Parameters :
x : The number whose factorial has to be computed.
Return value :
Returns the factorial of desired number.
Exceptions : 
Raises Value error if number is negative or non-integral.

0

math.factorial[x]
Parameters :
x : The number whose factorial has to be computed.
Return value :
Returns the factorial of desired number.
Exceptions : 
Raises Value error if number is negative or non-integral.

3

math.factorial[x]
Parameters :
x : The number whose factorial has to be computed.
Return value :
Returns the factorial of desired number.
Exceptions : 
Raises Value error if number is negative or non-integral.

0

The factorial of 23 is : 25852016738884976640000

7

math.factorial[x]
Parameters :
x : The number whose factorial has to be computed.
Return value :
Returns the factorial of desired number.
Exceptions : 
Raises Value error if number is negative or non-integral.

4

 

The factorial of 23 is : 25852016738884976640000

9

math.factorial[x]
Parameters :
x : The number whose factorial has to be computed.
Return value :
Returns the factorial of desired number.
Exceptions : 
Raises Value error if number is negative or non-integral.

7

math.factorial[x]
Parameters :
x : The number whose factorial has to be computed.
Return value :
Returns the factorial of desired number.
Exceptions : 
Raises Value error if number is negative or non-integral.

91

math.factorial[x]
Parameters :
x : The number whose factorial has to be computed.
Return value :
Returns the factorial of desired number.
Exceptions : 
Raises Value error if number is negative or non-integral.

92

math.factorial[x]
Parameters :
x : The number whose factorial has to be computed.
Return value :
Returns the factorial of desired number.
Exceptions : 
Raises Value error if number is negative or non-integral.

3

math.factorial[x]
Parameters :
x : The number whose factorial has to be computed.
Return value :
Returns the factorial of desired number.
Exceptions : 
Raises Value error if number is negative or non-integral.

94

The factorial of 23 is : 25852016738884976640000

9

math.factorial[x]
Parameters :
x : The number whose factorial has to be computed.
Return value :
Returns the factorial of desired number.
Exceptions : 
Raises Value error if number is negative or non-integral.

96

Đầu ra

The factorial of 23 is : 25852016738884976640000

Độ phức tạp về thời gian. O[n]
Không gian phụ. Ô[1]

Sử dụng toán học. yếu tố[]

Phương thức này được định nghĩa trong mô-đun “toán học” của python. Bởi vì nó có triển khai nội bộ loại C, nên nó nhanh

math.factorial[x]
Parameters :
x : The number whose factorial has to be computed.
Return value :
Returns the factorial of desired number.
Exceptions : 
Raises Value error if number is negative or non-integral.

Python3

math.factorial[x]
Parameters :
x : The number whose factorial has to be computed.
Return value :
Returns the factorial of desired number.
Exceptions : 
Raises Value error if number is negative or non-integral.

97

math.factorial[x]
Parameters :
x : The number whose factorial has to be computed.
Return value :
Returns the factorial of desired number.
Exceptions : 
Raises Value error if number is negative or non-integral.

98

math.factorial[x]
Parameters :
x : The number whose factorial has to be computed.
Return value :
Returns the factorial of desired number.
Exceptions : 
Raises Value error if number is negative or non-integral.

99

 

The factorial of 23 is : 25852016738884976640000

9

math.factorial[x]
Parameters :
x : The number whose factorial has to be computed.
Return value :
Returns the factorial of desired number.
Exceptions : 
Raises Value error if number is negative or non-integral.

7

math.factorial[x]
Parameters :
x : The number whose factorial has to be computed.
Return value :
Returns the factorial of desired number.
Exceptions : 
Raises Value error if number is negative or non-integral.

91

math.factorial[x]
Parameters :
x : The number whose factorial has to be computed.
Return value :
Returns the factorial of desired number.
Exceptions : 
Raises Value error if number is negative or non-integral.

92

math.factorial[x]
Parameters :
x : The number whose factorial has to be computed.
Return value :
Returns the factorial of desired number.
Exceptions : 
Raises Value error if number is negative or non-integral.

3

math.factorial[x]
Parameters :
x : The number whose factorial has to be computed.
Return value :
Returns the factorial of desired number.
Exceptions : 
Raises Value error if number is negative or non-integral.

94

The factorial of 23 is : 25852016738884976640000

9

math.factorial[x]
Parameters :
x : The number whose factorial has to be computed.
Return value :
Returns the factorial of desired number.
Exceptions : 
Raises Value error if number is negative or non-integral.

57____64

math.factorial[x]
Parameters :
x : The number whose factorial has to be computed.
Return value :
Returns the factorial of desired number.
Exceptions : 
Raises Value error if number is negative or non-integral.

59

Đầu ra

The factorial of 23 is : 25852016738884976640000

Độ phức tạp về thời gian. O[n]
Không gian phụ. Ô[1]

Ngoại lệ trong toán học. yếu tố[]

• Nếu số đã cho là Số âm.  

Python3

math.factorial[x]
Parameters :
x : The number whose factorial has to be computed.
Return value :
Returns the factorial of desired number.
Exceptions : 
Raises Value error if number is negative or non-integral.

97

math.factorial[x]
Parameters :
x : The number whose factorial has to be computed.
Return value :
Returns the factorial of desired number.
Exceptions : 
Raises Value error if number is negative or non-integral.

01

 

math.factorial[x]
Parameters :
x : The number whose factorial has to be computed.
Return value :
Returns the factorial of desired number.
Exceptions : 
Raises Value error if number is negative or non-integral.

98

math.factorial[x]
Parameters :
x : The number whose factorial has to be computed.
Return value :
Returns the factorial of desired number.
Exceptions : 
Raises Value error if number is negative or non-integral.

99

 

The factorial of 23 is : 25852016738884976640000

9

math.factorial[x]
Parameters :
x : The number whose factorial has to be computed.
Return value :
Returns the factorial of desired number.
Exceptions : 
Raises Value error if number is negative or non-integral.

7

math.factorial[x]
Parameters :
x : The number whose factorial has to be computed.
Return value :
Returns the factorial of desired number.
Exceptions : 
Raises Value error if number is negative or non-integral.

06

math.factorial[x]
Parameters :
x : The number whose factorial has to be computed.
Return value :
Returns the factorial of desired number.
Exceptions : 
Raises Value error if number is negative or non-integral.

92

math.factorial[x]
Parameters :
x : The number whose factorial has to be computed.
Return value :
Returns the factorial of desired number.
Exceptions : 
Raises Value error if number is negative or non-integral.

3

math.factorial[x]
Parameters :
x : The number whose factorial has to be computed.
Return value :
Returns the factorial of desired number.
Exceptions : 
Raises Value error if number is negative or non-integral.

94

 

math.factorial[x]
Parameters :
x : The number whose factorial has to be computed.
Return value :
Returns the factorial of desired number.
Exceptions : 
Raises Value error if number is negative or non-integral.

10

The factorial of 23 is : 25852016738884976640000

9

math.factorial[x]
Parameters :
x : The number whose factorial has to be computed.
Return value :
Returns the factorial of desired number.
Exceptions : 
Raises Value error if number is negative or non-integral.

57

math.factorial[x]
Parameters :
x : The number whose factorial has to be computed.
Return value :
Returns the factorial of desired number.
Exceptions : 
Raises Value error if number is negative or non-integral.

13

math.factorial[x]
Parameters :
x : The number whose factorial has to be computed.
Return value :
Returns the factorial of desired number.
Exceptions : 
Raises Value error if number is negative or non-integral.

14

math.factorial[x]
Parameters :
x : The number whose factorial has to be computed.
Return value :
Returns the factorial of desired number.
Exceptions : 
Raises Value error if number is negative or non-integral.

59

đầu ra

math.factorial[x]
Parameters :
x : The number whose factorial has to be computed.
Return value :
Returns the factorial of desired number.
Exceptions : 
Raises Value error if number is negative or non-integral.

9

• Nếu số đã cho là Giá trị không tích phân.  

Python3

math.factorial[x]
Parameters :
x : The number whose factorial has to be computed.
Return value :
Returns the factorial of desired number.
Exceptions : 
Raises Value error if number is negative or non-integral.

97

math.factorial[x]
Parameters :
x : The number whose factorial has to be computed.
Return value :
Returns the factorial of desired number.
Exceptions : 
Raises Value error if number is negative or non-integral.

17

 

math.factorial[x]
Parameters :
x : The number whose factorial has to be computed.
Return value :
Returns the factorial of desired number.
Exceptions : 
Raises Value error if number is negative or non-integral.

98

math.factorial[x]
Parameters :
x : The number whose factorial has to be computed.
Return value :
Returns the factorial of desired number.
Exceptions : 
Raises Value error if number is negative or non-integral.

99

 

The factorial of 23 is : 25852016738884976640000

9

math.factorial[x]
Parameters :
x : The number whose factorial has to be computed.
Return value :
Returns the factorial of desired number.
Exceptions : 
Raises Value error if number is negative or non-integral.

7

math.factorial[x]
Parameters :
x : The number whose factorial has to be computed.
Return value :
Returns the factorial of desired number.
Exceptions : 
Raises Value error if number is negative or non-integral.

22

math.factorial[x]
Parameters :
x : The number whose factorial has to be computed.
Return value :
Returns the factorial of desired number.
Exceptions : 
Raises Value error if number is negative or non-integral.

92

math.factorial[x]
Parameters :
x : The number whose factorial has to be computed.
Return value :
Returns the factorial of desired number.
Exceptions : 
Raises Value error if number is negative or non-integral.

3

math.factorial[x]
Parameters :
x : The number whose factorial has to be computed.
Return value :
Returns the factorial of desired number.
Exceptions : 
Raises Value error if number is negative or non-integral.

94

 

math.factorial[x]
Parameters :
x : The number whose factorial has to be computed.
Return value :
Returns the factorial of desired number.
Exceptions : 
Raises Value error if number is negative or non-integral.

10

The factorial of 23 is : 25852016738884976640000

9

math.factorial[x]
Parameters :
x : The number whose factorial has to be computed.
Return value :
Returns the factorial of desired number.
Exceptions : 
Raises Value error if number is negative or non-integral.

57

math.factorial[x]
Parameters :
x : The number whose factorial has to be computed.
Return value :
Returns the factorial of desired number.
Exceptions : 
Raises Value error if number is negative or non-integral.

29

math.factorial[x]
Parameters :
x : The number whose factorial has to be computed.
Return value :
Returns the factorial of desired number.
Exceptions : 
Raises Value error if number is negative or non-integral.

59

đầu ra

math.factorial[x]
Parameters :
x : The number whose factorial has to be computed.
Return value :
Returns the factorial of desired number.
Exceptions : 
Raises Value error if number is negative or non-integral.

5

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