The Python abs() function
The Python library consists of a large number of in-built functions that help in performing numerous operations. One of these functions is the abs() function. The Python abs() is a built-in function that comes with the standard library of python and it returns the absolute value of a number that is passed as a parameter to this method. The absolute value of a number is the value without considering its sign i.e. the non-negative value of a number. For example, the absolute value of -35 is 35 and the absolute value of 35 is 35 as well since the sign is not considered in absolute value.
Syntax of abs() method:
The following is the syntax of the abs() method:
abs(value)
What values does Python abs() function works on (Parameter values)?
abs() function only accepts numeric values. The following are the numbers on which the abs() function works:- integers, e.g. 9, -9, etc.
- floating point numbers, e.g. 3.14, 6.67, etc.
- complex numbers, e.g. 2+5i, 7+9i, etc.
Return Value of abs() function:
abs() method takes a single argument and returns its absolute value. If the argument passed is an integer it returns an integer value and if it is a float value, the return value is also a float. However, if a complex number is passed as a parameter, the function returns the magnitude of the complex number as a float value.Examples:
Passing an integer value:
# Absolute value of integer
x = -95
print("Absolute value of -95 is", abs(x))
y = 30
print("Absolute value of 30 is", abs(y)
Output:
Absolute value of -95 is 95
Absolute value of 30 is 30
Passing a float value:
# Absolute value of float
x = -3.14
print("Absolute value of -3.14 is", abs(x))
y = 9.8
print("Absolute value of 9.8 is", abs(y)
Output:
Absolute value of -3.14 is 3.14
Absolute value of 9.8 is 9.8
Passing a complex value:
# Absolute value of complex number
# abs() method return magnitude of a complex number
x = 3+4j
print("Absolute value of 3+4j is", abs(x))
y = 7-5j
print("Absolute value of 7-5j is", abs(y))
Output:
Absolute value of 3+4j is 5.0
Absolute value of 7-5j is 8.602325267042627
Uses of abs():
abs() method is very useful in mathematical operations that require the absolute value of a certain parameter. Also, it can be used for finding the magnitude of a given complex number.
