Python pow()

2021 VietMX PYTHON 0

The pow() function returns the power of a number.

The syntax of pow() is:

pow(x, y, z)

1. pow() Parameters

The pow() function takes three parameters:

  • x – a number, the base
  • y – a number, the exponent
  • z (optional) – a number, used for modulus

Hence,

  • pow(x, y) is equal to xy
  • pow(x, y, z) is equal to xy % z

2. Example 1: Python pow()

# positive x, positive y (x**y)
print(pow(2, 2))    # 4

# negative x, positive y
print(pow(-2, 2))    # 4  

# positive x, negative y
print(pow(2, -2))    # 0.25

# negative x, negative y
print(pow(-2, -2))    # 0.25

Output

4
4
0.25
0.25

3. Example 2: pow() with three arguments (x**y) % z

x = 7
y = 2
z = 5

print(pow(x, y, z))    # 4

Output

4

Here, 7 powered by 2 equals 49. Then, 49 modulus 5 equals 4.

Related posts:

Python Program to Reverse a Number
Python Program to Capitalize the First Character of a String
Python Program to Convert Kilometers to Miles
Python Set add()
Python next()
Python Dictionary keys()
Python set()
Python delattr()
Applied Text Analysis with Python - Benjamin Benfort & Rebecca Bibro & Tony Ojeda
Python Program to Create a Countdown Timer
Python Sets
Python String replace()
Deep Learning with Python - Francois Chollet
Python String translate()
Python Deep Learning Cookbook - Indra den Bakker
Python Dictionary items()
Machine Learning with Python for everyone - Mark E.Fenner
Python Program to Check If a String Is a Number (Float)
Python Set intersection_update()
Learning scikit-learn Machine Learning in Python - Raul Garreta & Guillermo Moncecchi
Python ascii()
Python Program to Display the multiplication Table
Machine Learning Applications Using Python - Cases studies form Healthcare, Retail, and Finance - Pu...
Python Variables, Constants and Literals
Python Program to Find Numbers Divisible by Another Number
Python Program Read a File Line by Line Into a List
Python Dictionary popitem()
Python String upper()
Python Program to Print the Fibonacci sequence
Python String maketrans()
Python Machine Learning Eqution Reference - Sebastian Raschka
Python Program to Find the Factorial of a Number