Python math.nan Constant

Python math 模块Python math Module

Python math.nanReturns a floating-point value nan (not a number), which is not a legal number.

math.nanEquivalent tofloat('nan')the output of

Syntax

The syntax of the math.nan constant is as follows:

math.nan

Return Value

Returns a floating-point number nan.

Example

The following example returns nan:

Example

# Import the math package
import math

# Output nan
print (math.nan)

# Output nan type
print (type(math.nan))

Output result:

nan
<class 'float'>

Python math 模块Python math Module

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