F String Round - Python

F string round is a feature in Python that allows you to round floating-point numbers and include them directly in a string using f-string syntax. F-strings provide a concise and convenient way to format strings with variable values.

Syntax

The syntax for using f string round is as follows:

f"{variable_name:.nf}"

• variable_name is the name of the variable containing the floating-point number you want to round.
• n is an integer that specifies the number of decimal places to round to.

Example

Here is an example to illustrate the usage of f string round:

pi = 3.14159
radius = 5

area = pi * radius**2

print(f"The area of the circle with radius {radius} is approximately {area:.2f}.")

Output:

The area of the circle with radius 5 is approximately 78.54.

In the above example, we use f-string syntax to embed the value of the radius variable in the string. We also apply the :.2f format specifier to round the area value to 2 decimal places.

Benefits

• Concise syntax: F-string round provides a concise and readable syntax to include rounded floating-point numbers directly in string interpolation.
• Flexible formatting: You can easily adjust the number of decimal places to round to by changing the value of n in the format specifier.
• Improved code readability: By using f-string round, you can make your code more readable by keeping variable values and string formatting together.

Limitations

• F-string round is only available in Python 3.6 and above. If you are using an earlier version, you will need to use other methods to round floating-point numbers in strings, such as the round() function.
• The format specifier :.nf will always display n decimal places, even if the number has fewer significant digits. This can result in trailing zeros.

Conclusion

F string round is a powerful feature in Python that allows you to easily round floating-point numbers and include them in strings. It provides a flexible and compact syntax for string interpolation with rounded values. Start using f-string round to enhance the readability and accuracy of your Python code.