How to Format Floating-Point Numbers Precisely Using f-Strings in Python?

Mary-Kate Olsen
Release: 2024-10-29 18:47:02
Original
387 people have browsed it

 How to Format Floating-Point Numbers Precisely Using f-Strings in Python?

Formatting Floating-Point Numbers Precisely with f-Strings

Python's f-strings provide a convenient way to format strings dynamically. However, when working with floating-point numbers, specifying the desired number of decimal places can be challenging. This article explores an efficient method to control the number of digits displayed after the decimal point using f-strings.

Problem:

Consider the following task: display a floating-point number, such as 10.1234, with only two digits after the decimal point. Traditional string formatting options like .format or % exist, but how can we achieve this precision using f-strings?

Solution:

The key to controlling the number of decimal places lies in the format expression included within the f-string. To specify the desired precision, we append a type specifier to the expression: .2f. This indicates that we want to display the value as a floating-point number with two decimal places.

For example, given the variable a = 10.1234:

>>> f'{a:.2f}'
Copy after login

This expression will output the string '10.12', effectively truncating the number to two decimal places. By adjusting the value after the colon (2 in this case), you can specify any desired number of decimal digits.

The above is the detailed content of How to Format Floating-Point Numbers Precisely Using f-Strings in Python?. For more information, please follow other related articles on the PHP Chinese website!

source:php.cn
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Latest Articles by Author
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template
About us Disclaimer Sitemap
php.cn:Public welfare online PHP training,Help PHP learners grow quickly!