Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

Python Python Basics (Retired) Things That Count Ints & Floats

What is the reason for 0.1+0.1+0.1-0.3 is giving some wierd number

I would like to know this situation in detail.

1 Answer

William Li
PLUS
William Li
Courses Plus Student 26,868 Points

I would like to know this situation in detail.

===============

Okay

For a simple explanation, you may check out this Python documentation.

For a deep treatment on the subject, definitely take a look at this paper What Every Computer Scientist Should Know About Floating-Point Arithmetic, it's the most widely cited paper on the topic of Floating Point Arithmetic, and is the required reading for every undergraduate CS students in my college.

Hope it helps.