Steven D'Aprano <steve+pyt...@pearwood.info> added the comment:
Further to what Matthew said, this is not just a Python oddity. It applies to just about all programming languages, including C, C++, Java, Javascript, Ruby, etc. Some of them have even less precision by default. Floats are not the same as the real numbers you learned about in school. There is a huge amount of resources about the limitations of floating point arithmetic on Stackoverflow etc which can be found by googling. A good place to start is the Python FAQs and tutorial: https://docs.python.org/3/faq/design.html#why-are-floating-point-calculations-so-inaccurate https://docs.python.org/3/tutorial/floatingpoint.html#tut-fp-issues ---------- nosy: +steven.daprano _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue39436> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
