pow() Function - Python

pow() Function - Python

Last Updated : 14 Apr, 2025

pow() function in Python is a built-in tool that calculates one number raised to the power of another. It also has an optional third part that gives the remainder when dividing the result. Example:

Python

print(pow(3,2))

Output

Explanation: pow(3, 2) calculates 3²= 9, where the base is positive and the exponent is positive.

Syntax of pow() function

pow(x, y, mod)

Parameters:

x : Number whose power has to be calculated.
y : Value raised to compute power.
mod [optional]: if provided, performs modulus of mod on the result of x**y (i.e.: x**y % mod)

Returns: It returns the value x**y in float or int (depending upon input operands or 2nd argument).

Implementation cases in pow() function

The below table summarizes the different cases to apply the Python pow() function.

Cases of Python pow() function

Examples of pow() function

Example 1: In this example, we are using the third argument in the pow() function, which performs a modulus operation after calculating the power.

Python

print(pow(3, 4, 10))

Output

Explanation: print(pow(3, 4, 10)) calculates 3⁴mod 10. First 3⁴=81, then finds the remainder when 81 is divided by 10, which is 1.

Example 2: In this example, we use the pow() function to demonstrate how it handles different combinations of positive and negative bases and exponents, resulting in varying outputs based on their signs.

Python

# +x, +y
print(pow(4, 3))

# -x, +y
print(pow(-4, 3))

# +x, -y
print(pow(4, -3))

# -x, -y
print(pow(-4, -3))

Output

Explanation:

pow(4, 3) calculates 4³=64, where both the base and exponent are positive.
pow(-4, 3) calculates (−4)³=-64, where the base is negative and the exponent is positive.
pow(4, -3) computes 1/4³= 0.015625, where the base is positive and the exponent is negative.
pow(-4, -3) calculates 1/(−4)³= -0.015625, where both the base and exponent are negative.

pow() Function - Python

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