Python| cmath.nan 常量
cMath 模块包含许多用于复数数学运算的函数。 cmath.nan常量用于获取浮点 nan(非数字)。
Syntax: cmath.nan
Returns: Return the floating-point nan value.
下面的例子说明了上述函数的使用:
示例 #1:
Python3
# Python code to implement
# the cmath.nan constant
# importing "cmath"
# for mathematical operations
import cmath
# Print the value of nan
val = cmath.nan
print(val)
Python3
# Python code to implement
# the cmath.nan constant
# importing "cmath"
# for mathematical operations
import cmath
# use of cmath.nan
val = cmath.isnan(cmath.nan)
print(val)
输出:
nan
示例 #2:
Python3
# Python code to implement
# the cmath.nan constant
# importing "cmath"
# for mathematical operations
import cmath
# use of cmath.nan
val = cmath.isnan(cmath.nan)
print(val)
输出:
True