Three ways to find the absolute value of python

Three ways to find the absolute value of python¶

1. Conditional judgment
2. Built-in function abs()
3. Built-in module math.fabs

import math


# Method 1, Keywords: Conditional judgment
def abs_value1():
    a = int(input('please enter a number:'))
    if a > 0:
        print(a)
    else:
        print(-a)


# Method 2, Keywords: Built-in function
def abs_value2():
    a = int(input('please input-number:'))
    b = abs(a)
    print(b)


# Method 3, Keywords: Built-in module
def abs_value3():
    a = int(input('Please enter a number:'))
    b = math.fabs(a)
    print(b)

The difference between abs() and fabs()¶

• abs() is a built-in function, and fabs() is defined in the math module.
• The fabs() function is only suitable for float and integer types, and abs() is also suitable for complex numbers.
• abs() returns float and int types, math.fabs() returns float types