How do you square root a float in Python?

You can square root a float in Python using the sqrt() function from the math module. This function returns the square root as a floating-point number.

Here's how to do it:

1. Import the math module: You need to import the math module to access the sqrt() function.

2. Use the sqrt() function: Pass the float you want to square root as an argument to the sqrt() function.

3. The sqrt() function returns a floating-point number: The result is the square root of the input, represented as a float.

import math

number = 25.0
square_root = math.sqrt(number)

print(square_root)  # Output: 5.0
print(type(square_root)) # Output: <class 'float'>

Example:

import math

# Different float values
value1 = 9.0
value2 = 2.0
value3 = 0.25

# Calculating square roots
sqrt_value1 = math.sqrt(value1)
sqrt_value2 = math.sqrt(value2)
sqrt_value3 = math.sqrt(value3)

# Displaying results
print(f"The square root of {value1} is: {sqrt_value1}")  # Output: The square root of 9.0 is: 3.0
print(f"The square root of {value2} is: {sqrt_value2}")  # Output: The square root of 2.0 is: 1.4142135623730951
print(f"The square root of {value3} is: {sqrt_value3}")  # Output: The square root of 0.25 is: 0.5

Key Takeaway:

• The math.sqrt() function always returns a float, even if the input is a float that represents a whole number (like 25.0).