Results 1 to 2 of 2

Math Help - Cross Product of 2d Vectors

  1. #1
    Newbie
    Joined
    Oct 2009
    Posts
    6

    Cross Product of 2d Vectors

    If u=<0,1> and v=<e,pi> are 2d vectors, then how do I evaluate the cross product u X v?
    Follow Math Help Forum on Facebook and Google+

  2. #2
    MHF Contributor

    Joined
    Aug 2006
    Posts
    18,956
    Thanks
    1780
    Awards
    1
    Quote Originally Posted by magdaddy101 View Post
    If u=<0,1> and v=<e,pi> are 2d vectors, then how do I evaluate the cross product u X v?
    For 2d vectors the cross product is a determinant.
    If u=<u_x,u_y>~\&~v=<v_x,v_y> then <br />
u \times v = \left| {\begin{array}{rr}<br />
   {u_x } & {u_y }  \\<br />
   {v_x } & {v_y }  \\<br /> <br />
 \end{array} } \right| = u_x v_y  - u_y v_x
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Cross product and vectors
    Posted in the Advanced Algebra Forum
    Replies: 1
    Last Post: April 6th 2011, 06:34 AM
  2. Cross product of vectors.
    Posted in the Calculus Forum
    Replies: 4
    Last Post: February 23rd 2011, 05:17 PM
  3. Cross Product of Vectors
    Posted in the Pre-Calculus Forum
    Replies: 10
    Last Post: February 5th 2011, 09:49 PM
  4. cross product(vectors)
    Posted in the Calculus Forum
    Replies: 1
    Last Post: August 28th 2008, 09:55 PM
  5. Replies: 1
    Last Post: May 14th 2008, 12:31 PM

Search Tags


/mathhelpforum @mathhelpforum