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# pow() in Python

• Difficulty Level : Basic
• Last Updated : 22 Sep, 2021

Python pow() function returns the power of the given numbers. This function computes x**y. This function first converts its arguments into float and then computes the power.

Syntax: pow(x,y)

Parameters :

• x : Number whose power has to be calculated.
• y : Value raised to compute power.

Return Value :  Returns the value x**y in float.

## Python3

 `# Python code to demonstrate pow()``# version 1` `print``(``"The value of 3**4 is : "``, end``=``"")` `# Returns 81``print``(``pow``(``3``, ``4``))`

Output:

`The value of 3**4 is : 81.0`

### Example 2: Python pow() with three argument

float pow(x,y,mod) function computes (x**y) % mod. This function first converts its arguments into float and then computes the power.

Syntax: float pow(x,y,mod)

Parameters :

• x : Number whose power has to be calculated.
• y : Value raised to compute power.
• mod :  Value with which modulus has to be computed.

Return Value :  Returns the value (x**y) % mod in float.

## Python3

 `# Python code to demonstrate pow()``# version 2` `print``(``"The value of (3**4) % 10 is : "``, end``=``"")` `# Returns 81%10``# Returns 1``print``(``pow``(``3``, ``4``, ``10``))`

Output:

`The value of (3**4) % 10 is : 1`

## Python3

 `# Python code to discuss negative``# and non-negative cases` `# positive x, positive y (x**y)``print``(``"Positive x and positive y : "``, end``=``"")``print``(``pow``(``4``, ``3``))` `print``(``"Negative x and positive y : "``, end``=``"")``# negative x, positive y (-x**y)``print``(``pow``(``-``4``, ``3``))` `print``(``"Positive x and negative y : "``, end``=``"")``# positive x, negative y (x**-y)``print``(``pow``(``4``, ``-``3``))` `print``(``"Negative x and negative y : "``, end``=``"")``# negative x, negative y (-x**-y)``print``(``pow``(``-``4``, ``-``3``))`

Output:

```Positive x and positive y : 64
Negative x and positive y : -64
Positive x and negative y : 0.015625
Negative x and negative y : -0.015625```

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