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!

Rotation of axes

  1. Oct 13, 2007 #1
    Let a point be(x,y)

    If the coordinate axes are shifted in clockwise direction by an angle theeta,what are the coordinate of the new point(X,Y).
  2. jcsd
  3. Oct 13, 2007 #2


    User Avatar
    Science Advisor

    How about drawing a picture. Draw the x-axis horizontal, the y-axis vertical and mark the point (x,y). Now draw the x'-axis at angle [itex]\theta[/itex] to the x-axis, y'-axis at angle [itex]\theta[/itex] to the y-axis. Draw a perpendicular to the x-axis. Its length is y. Draw a perpendicular to the x'-axis. Its length is y'. You now have two right triangles and should be able to use trig functions to deternine y' as a function of x, y, and [itex]\theta[/itex].
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook