Results 1 to 6 of 6

Math Help - Step or Floor Function

  1. #1
    rcs
    rcs is offline
    Senior Member rcs's Avatar
    Joined
    Jul 2010
    From
    iligan city. Philippines
    Posts
    455
    Thanks
    2

    Step or Floor Function

    Hello there:

    Can anybody help me Graph and find the Domain and Range of these:

    f(x) = [x + 1/2] what is the graph of this step function

    g(x)= 2 - x

    please help me
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Senior Member
    Joined
    Jul 2010
    From
    Vancouver
    Posts
    432
    Thanks
    16
    is [x+1/2] the nearest integer function?
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Member
    Joined
    Jan 2009
    Posts
    145
    The domain of the floor function is all real numbers, and the range will only be the set of integers.

    In order to graph the function, remember that if  f is the floor function, then for  x = a.b for  a the integer portion of x and  b the decimal portion of x,  f(x) = a .
    Follow Math Help Forum on Facebook and Google+

  4. #4
    rcs
    rcs is offline
    Senior Member rcs's Avatar
    Joined
    Jul 2010
    From
    iligan city. Philippines
    Posts
    455
    Thanks
    2
    yes vlasev i need a picture of their graph ... floor function ... please help
    Follow Math Help Forum on Facebook and Google+

  5. #5
    MHF Contributor

    Joined
    Aug 2006
    Posts
    18,605
    Thanks
    1573
    Awards
    1
    Step or Floor Function-untitled.gif
    Quote Originally Posted by rcs View Post
    yes vlasev i need a picture of their graph ... floor function ... please help
    .
    Follow Math Help Forum on Facebook and Google+

  6. #6
    rcs
    rcs is offline
    Senior Member rcs's Avatar
    Joined
    Jul 2010
    From
    iligan city. Philippines
    Posts
    455
    Thanks
    2
    i gues i have found the answer

    g(x) = 2 – x f(x)
    g(x) = 2 – xn where, n≤x<n+1
    if
    n = 2 2 -2x , 2≤x<3
    n = 1 2 –x , 1≤x<2
    n = 0 2 , 0≤x<1
    n = -1 2 + x , -1≤x<0
    n = -2 2 +2x , -2≤x<-1

    i could hardly paste or show to you the illustration of this function... i have the image of the graph but i dnt knw how to upload here



    [/B]
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Help with floor function
    Posted in the Calculus Forum
    Replies: 1
    Last Post: February 3rd 2010, 11:51 AM
  2. Replies: 1
    Last Post: December 3rd 2009, 08:45 AM
  3. Floor function
    Posted in the Pre-Calculus Forum
    Replies: 1
    Last Post: June 23rd 2009, 10:03 PM
  4. step-ladder on rough floor
    Posted in the Advanced Applied Math Forum
    Replies: 0
    Last Post: April 24th 2009, 01:48 PM
  5. Floor function
    Posted in the Number Theory Forum
    Replies: 5
    Last Post: December 21st 2008, 10:13 PM

Search Tags


/mathhelpforum @mathhelpforum