Python| sympy.is_nonnegative() 方法

在 simpy 模块中，我们可以使用 sympy.is_nonnegative()函数测试给定数字 n 是否为非负数。

Syntax:  sympy.is_nonnegative(n)
Parameter:  n; number to be tested
Return:  bool value result 

代码#1：

Python3

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

输出：

False
True

代码#2：

Python3

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

输出：

False