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!

Which One Is The Knot Vector?

  1. Mar 25, 2013 #1
    Could someone show me which one is called by the knot vector and how to define it?

    Thank you

    Attached Files:

  2. jcsd
  3. Mar 25, 2013 #2


    Staff: Mentor

    This may help:


    It mentions that the knot vector is a list of numbers not a real vector so maybe its related to the point numbering.
  4. Mar 25, 2013 #3


    User Avatar
    Science Advisor

    There are a number of different definitions of "knot" in different types of mathematics. From your graph it appears that you are approximating a function by a "broken line". In this case the "knots" are the points at which the different line segments join so your "knot vector" is simply (b0, b1, b2, b3).
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook