Results 1 to 6 of 6

Math Help - Newtons method. Intersection between graphs.

  1. #1
    Member
    Joined
    Nov 2008
    Posts
    146

    Newtons method. Intersection between graphs.

    Hi.

    I have the 2 graphs e^x and 2-x. I want to find out the intersection point using newtons method. My question is how do i know what f(X) is.
    Follow Math Help Forum on Facebook and Google+

  2. #2
    MHF Contributor

    Joined
    Aug 2006
    Posts
    18,657
    Thanks
    1607
    Awards
    1
    Quote Originally Posted by Kuma View Post
    I have the 2 graphs e^x and 2-x. I want to find out the intersection point using newtons method. My question is how do i know what f(X) is.
    Let f(x)=e^x-(2-x).
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Member
    Joined
    Nov 2008
    Posts
    146
    why not the other way around though? How do you determine this.
    why cant it be 2-x - e^x
    Follow Math Help Forum on Facebook and Google+

  4. #4
    MHF Contributor

    Joined
    Aug 2006
    Posts
    18,657
    Thanks
    1607
    Awards
    1
    Quote Originally Posted by Kuma View Post
    why not the other way around though? How do you determine this.
    why cant it be 2-x - e^x
    It does not matter. You could do that.
    The root will be the same either way.
    Follow Math Help Forum on Facebook and Google+

  5. #5
    Member
    Joined
    Nov 2008
    Posts
    146
    Quote Originally Posted by Plato View Post
    It does not matter. You could do that.
    The root will be the same either way.
    Thanks. One last thing. So that's the case for any two graphs then? Order does not matter?
    Follow Math Help Forum on Facebook and Google+

  6. #6
    MHF Contributor

    Joined
    Aug 2006
    Posts
    18,657
    Thanks
    1607
    Awards
    1
    Quote Originally Posted by Kuma View Post
    Thanks. One last thing. So that's the case for any two graphs then? Order does not matter?
    0=-0=+0.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Newtons method help?
    Posted in the Differential Geometry Forum
    Replies: 15
    Last Post: December 13th 2010, 10:33 PM
  2. newtons method
    Posted in the Calculus Forum
    Replies: 5
    Last Post: October 22nd 2009, 10:18 PM
  3. Newtons Method
    Posted in the Calculus Forum
    Replies: 7
    Last Post: May 7th 2009, 02:07 PM
  4. Newtons method
    Posted in the Calculus Forum
    Replies: 1
    Last Post: January 13th 2009, 07:30 AM
  5. Newtons Method
    Posted in the Calculus Forum
    Replies: 5
    Last Post: July 2nd 2006, 09:16 PM

Search Tags


/mathhelpforum @mathhelpforum