Python3 fabs () function
description
fabs () method returns the number of absolute value, such as math.fabs (-10) returns 10.0.
fabs () function is similar to abs () function, but he has two differences:
abs () is a built-in function. fabs () function is defined in the math module.
fabs () function is only valid floating-point with integer value. abs () can also be used in the plural.
grammar
The following is the syntax fabs () method:
import math math.fabs( x )
Note: fabs () is not directly accessible, you need to import math module, invoke the method through static object.
parameter
- x - numeric expression.
return value
Returns the absolute value of the number.Examples
The following shows an example of the use of fabs () method:
#!/usr/bin/python3 import math # 导入 math 模块 print ("math.fabs(-45.17) : ", math.fabs(-45.17)) print ("math.fabs(100.12) : ", math.fabs(100.12)) print ("math.fabs(100.72) : ", math.fabs(100.72)) print ("math.fabs(math.pi) : ", math.fabs(math.pi))
After running the above example output is:
math.fabs(-45.17) : 45.17 math.fabs(100.12) : 100.12 math.fabs(100.72) : 100.72 math.fabs(math.pi) : 3.141592653589793