Python sympy.is_nonpositive()方法

在simpy模块中，我们可以使用sympy.is_nonpositive()函数来测试一个给定的数字n是否为非正数。

语法: sympy.is_nonpositive(n)
参数 : n; 待测数
返回： bool value result

代码 #1:

# Python program to check non-positive number
# using sympy.is_nonpositive() method
 
# importing sympy module
from sympy import *
 
# calling is_nonpositive function on different numbers
geek1 = simplify(-21).is_nonpositive
geek2 = simplify(0).is_nonpositive
 
print(geek1)
print(geek2)

输出:

True
False

代码 #2:

# Python program to check non-positive number
# using sympy.is_nonpositive() method
 
# importing sympy module
from sympy import *
 
# calling is_nonpositive function on different numbers
geek = simplify(-002).is_nonpositive
 
print(geek)

输出:

True