Python| sympy.compositepi() 方法

在sympy.compositepi()方法的帮助下，我们可以找到小于或等于给定数的合数的个数。

Syntax: compositepi(n)

Parameter:
n – It denotes the number up to which the count of composite number is calculated.

Returns: Returns the number of composite numbers less than or equal to n.

示例 #1：

# import compositepi() method from sympy
from sympy import compositepi
  
n = 10
  
# Use compositepi() method 
count_composites = compositepi(n) 
      
print("The number of composites numbers less than or equal to {} is {}".format(n, count_composites))

输出：

The number of composites numbers less than or equal to 10 is 5

示例 #2：

# import compositepi() method from sympy
from sympy import compositepi
  
n = 100
  
# Use compositepi() method 
count_composites = compositepi(n) 
      
print("The number of composites numbers less than or equal to {} is {}".format(n, count_composites))          

输出：

The number of composites numbers less than or equal to 100 is 74