input() with float function

 Here's an example of using the input() function with the float() function to get a float input from the user:

python
price = float(input("Enter the price of the item: ")) 
tax_rate = float(input("Enter the tax rate as a decimal: ")) 
total_cost = price + (price * tax_rate) 
print("The total cost is: $" + str(total_cost))

In this example, we're using the input() function to prompt the user to enter two decimal values: the price of an item and the tax rate as a decimal. We convert these values to float values using the float() function, and then use them to perform a calculation and print the total cost to the user.

Note that when we use the float() function to convert the user's input to a float, we need to make sure that the input is actually a valid float value, otherwise a ValueError will be raised. It's generally a good idea to handle this case gracefully by catching the exception and prompting the user to enter a valid value.