1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Inclusion/Exclusion Expansion for minimal cut sets

  1. Feb 9, 2013 #1
    I am following the OpenFTA (Fault Tree Analysis) User Manual at http://www.openfta.com/Download.aspx. Page 81 uses the inclusion/exlusion expansion to express the top-most fault in terms of minimal cut sets. Page 82 shows the same inclusion/expansion expansion broken up into components. However, it looks like there are typographical errors.

    1) I suspect that the P1's are suppose to be P1, P2, P3, etc. based on the implied definition of Pi just before mid-page.

    2) The third component [P3, if my point (1) above is correct] should have an addition rather than a subtraction.

    3) The paragraph following the P1/P2/P3 says that each line has N-choose-r sub-terms. This should be N-choose-i (and N should not be capital).

    4) In the same sentence, it says there are 2N terms. I believe this should be 2^N (same as the normal inclusion/exlusion expansion).

    I am new to FTA and I arrived at the above 4 point by surfing the web for information on FTA. Can anyone confirm this?

    Thanks.
     
  2. jcsd
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Can you offer guidance or do you also need help?
Draft saved Draft deleted



Similar Discussions: Inclusion/Exclusion Expansion for minimal cut sets
  1. Cut mini solar cell? (Replies: 1)

Loading...