Thread: IEEE 745 versus 754?

  1. #1
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    IEEE 745 versus 754?

    What is the difference between these? I try to search around online, and keep coming up with 754, but also have seen 745 referenced.

    What gives? thank you very much in advance,
    Jalisco

  2. #2
    spurious conceit MK27's Avatar
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    Umm, I'm guessing typos (unless you have a clear counter example). Eg:

    IEEE 745 Notation

    The html title is "IEEE 745 Notation" but if you go to the page, you'll notice it is actually about IEEE 754. I looked at a few more results from google, I'd say they are all typo related. Another one:

    Chapter 5 - Floating Point Numbers

    At the top it says "This chapter covers ... IEEE 745 floating point standard", but if you search down, there are no more references to 745, just 754.
    C programming resources:
    GNU C Function and Macro Index -- glibc reference manual
    The C Book -- nice online learner guide
    Current ISO draft standard
    CCAN -- new CPAN like open source library repository
    3 (different) GNU debugger tutorials: #1 -- #2 -- #3
    cpwiki -- our wiki on sourceforge

  3. #3
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    Thanks, that is what I was starting to think as well. As everything about Floating Point Notation points to the IEEE 754 standards.

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