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!

Please explain the graph of int(x)

  1. Jul 14, 2011 #1
    i do not understand why they graph it with a line and a circle. I know what the circle and the line mean, i just do not understand how they apply to this graph.
  2. jcsd
  3. Jul 14, 2011 #2


    Staff: Mentor

    Are you talking about the greatest integer function that looks like this?
    [tex]\lfloor x\rfloor[/tex]

    If so, the greatest integer function is defined as the largest integer that is less than or equal to x.
    [tex]\lfloor 2.0\rfloor = 2[/tex]
    [tex]\lfloor 2.5\rfloor = 2[/tex]
    [tex]\lfloor 2.99\rfloor = 2[/tex]
    [tex]\lfloor 3.0\rfloor = 3[/tex]

    The function has a jump of one unit at each integer value.
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Similar Discussions: Please explain the graph of int(x)
  1. Please explain (Replies: 1)

  2. Please explain (Replies: 6)

  3. Explain graph of y=√x (Replies: 12)